Macroeconomics for a modern economy.
Phelps, Edmund S.
Expressionism was rooted in the new experience of metropolitan life
that transformed Europe between 1860 and 1930. It [is] a visionary
expression of what it feels like to be adrift, exhilarated, terrified in
a fast-paced, incomprehensible world.
Jackie Wullschlager, 'The original sensationalists,'
Financial Times
The modern economy began to supplant the traditional economy in
several nations in the latter half of the 19th century--and many more in
the latter half of the 20th. A system where self-employment and
self-finance was typical gave way to a system of companies having
various business freedoms and enabling institutions. This was the
"great transformation" on which historians and sociologists as
well as business commentators were to write volumes. The modern economy,
where fully adopted, has indeed been transformative for nations (1)--but
much less so for economics.
If there is a thread running through my publications, particularly
the work discussed here, it is that I have tried in that work to bear in
mind the distinctive nature of the modern economy. (2) What is its
nature?
I. MODERN ECONOMIES AND MODERN ECONOMICS
Many of the early contrasts between the two kinds of economy were
drawn by sociologists. The traditional economy was said to rest on a
community of persons known to one other and engaged in mutual
support--on Gemeinschaft--while the modern economy was said to be based
on business, where people competed with one another--on Gesellschaft
(Tonnies, 1887). (3) Social rank was said to count in a traditional
economy but not in a modern economy (Weber, 1921/22). True or not, these
sociological contrasts did not obviously call for a fundamental revision
of standard economic models.
Economic contrasts between the two systems were drawn by economic
historians. A traditional economy is one of routine. In the paradigm
case, rural folk periodically exchange their produce for goods of the
town. Disturbances, if any, are not of their doing and beyond their
control--temperature, rainfall, and other exogenous shocks. A modern
economy is marked by the feasibility of endogenous change: Modernization
brings myriad arrangements from expanded property rights to company law
and financial institutions. That opens the door for individuals to
engage in novel activity in the financing, developing and marketing of
new products and methods--commercial innovations. The emergence of this
"capitalism," as Marx called it, in Europe and America ushered
in a long era of stepped-up innovation from about 1860 to 1940; further
waves of innovation have since occurred. The innovations undertaken were
successful often enough that rapid cumulative economic change followed.
A few pioneering theorists, mostly from the interwar years, saw the
commercial innovativeness and the ongoing economic change as having
systemic effects that altered people's experience in the economy.
Innovativeness raises uncertainties. The future outcome of an
innovative action poses ambiguity: (4) the law of "unanticipated
consequences" applies (Merton, 1936); entrepreneurs have to act on
their "animal spirits," as Keynes (1936) put it; in the view
of Hayek (1968), innovations are launched first, the benefit and the
cost are "discovered" afterwards. The innovating itself and
the changes it causes make the future full of Knightian uncertainty (1921) for non-innovators too. Finally, since innovation and change
occur unevenly from place to place and industry to industry, there is
also uncertainty about the present: what is going on elsewhere, much of
which is unobserved and some of it unobservable without one's being
there. Thus, even if every actor in the modern economy had the same
understanding ("model") of how the economy works, one would
not suppose that others' understanding is like one's own. With
modernization, then, another feature of a traditional economy--common
knowledge that a common understanding prevailed--was lost. (5)
Innovativeness also transforms jobs. As Hayek (1948) saw, even the
lowest ranking employees come to possess unique knowledge yet difficult
to transmit to others, so people had to work collaboratively. Managers
and workers too were stimulated by the changes and challenged to solve
the new problems arising. Marshall (1892) wrote that the job was for
many people the main object of their thoughts and source of their
intellectual development. Myrdal (1932) wrote that "most people who
are reasonably well off derive more satisfaction as producers than as
consumers."
Far into the 20th century, though, economics had not made a
transition to the modern. Formal micro-founded economic theory remained
neoclassical, founded on the pastoral idylls of Ricardo, Wicksteed,
Wicksell, Bohm-Bawerk and Walras, right through the 1950s.
Samuelson's project to correct, clarify and broaden the theory
brought into focus its strengths; (6) but also its limitations: It
abstracted from the distinctive character of the modern economy--the
endemic uncertainty, ambiguity, diversity of beliefs, specialization of
knowledge and problem solving. As a result it could not capture, or
endogenize, the observable phenomena that are endemic to the modern
economy--innovation, waves of rapid growth, big swings in business
activity, disequilibria, intense employee engagement and workers'
intellectual development. The best and brightest of the neoclassicals
saw these defects but lacked a micro-theory to address them. To have an
answer to how monetary forces or policy impacted on employment, they
resorted to makeshift constructions having either no microeconomics
behind it, such as the Phillips Curve and even fixed prices, or to
models in which all fluctuations are merely random disturbances around a
fixed mean.
After some neoclassical years at the start of my career I began
building models that address those modern phenomena. So did several
other young economists during that decade of ferment, the 1960s. (7) At
Yale and at RAND, in part through my teachers William Fellner and Thomas
Schelling, I gained some familiarity with the modernist concepts of
Knightian uncertainty, Keynesian probabilities, Hayek's private
know-how and M. Polyani's personal knowledge. Having to a degree
assimilated this modernist perspective, I could view the economy at
angles different from neoclassical theory. (8) I could try to
incorporate or reflect in my models what it is that an employee, manager
or entrepreneur does: to recognize that most are engaged in their work,
form expectations and evolve beliefs, solve problems and have ideas.
Trying to put these people into economic models became my project.
EXPECTATIONS IN MODELS OF ACTIVITY
Unemployment determination in a modern economy was the main subject
area of my research from the mid-1960s to the end of the 1970s and again
from the mid-1980s to the early 1990s. The primary question driving my
early research was basic: Why does a surge of "effective
demand," that is, the flow of money buying goods, cause an increase
in output and employment, as supposed in the great book by Keynes
(1936)? Why not just a jump in prices and money wages?
Another question arose immediately: How could there be positive
involuntary unemployment in equilibrium conditions--more precisely,
along any equilibrium path? The answer implied by my model was that if
there were not positive unemployment, employee quitting would, in
general, be so rampant that every firm would be trying to out-pay one
another in order to cut the high training outlay that comes with high
turnover. To my mind, the argument did not rest on the "asymmetric
information" premise that a worker could conceal his or her
propensity to quit from an employer. (Employers might know better what
quit rates to expect than the employees themselves.) It rested on the
impossibility of a contract protecting the employer from all the excuses
for quitting the employee might be able to claim. There are also the
abuses the employer could inflict on employees to force them to quit. In
a modern economy, therefore, agreements are unwritten, thus informal,
or, where written, not entirely unambiguous.
My approach to the relation between "(effective) demand"
and activity started from the observation that, faced with all sorts of
innovations and change, the market place of the modern economy was not
just "decentralized," as neoclassical economists liked to say.
The beliefs and responses of each actor in the economy are
uncoordinated: Walras's deus ex machina, the economy-wide
auctioneer, is inapplicable to a modern economy in which much activity
is driven by innovation and past innovation has left a vast
differentiation of goods. This led to the point that the expectations of
individuals and thus their plans may be inconsistent. Then, some or all
persons' expectations are incorrect--a situation Marshall and
Myrdal called disequilibrium. (9) Thus the economy--say, a closed
economy, for simplicity--might often be in situations where every firm
(or a preponderance of firms) currently expects that the other firms are
paying employees at a rate less than or perchance greater than its own
pay rate. In the former example, every firm believes that, with its
chosen pay scale, it is out-paying the others.
In my first model having a labor market capable of disequilibrium
(Phelps, 1968a), the effect of such an underestimate of the wage rates
being set elsewhere is to damp the wage rate that every such firm
calculates it needs to pay in order to contain employee quitting by
enough to minimize its total cost (at present output)--the sum of its
payroll costs plus turnover costs. In terms of a later construct, the
"wage curve" is lowered by firms' underestimating what
will be the going wage at their competitors. (10) Such a lowering of the
wage curve serves to lower firms' cost curves, thus to lower the
prices and, through the monetary block of the 1968 model, to increase
output (achieved at first by moving employees from training to
producing); employment gradually expands thanks to reduced quitting
caused by employee expectations that wages are lower at other firms than
at their own. Later firms may step up hiring (from the initially reduced
level) in response to the reduced costs and thus higher profit margins.
What seemed to be a simple model was quickly revealed to be full of
subtleties, so that very few students fully master it. However, the
point that expectations matter for wages, prices and activity has been
grasped. The economy is boosted by underestimation of competitors'
wages and by firms' underestimation in customer markets of their
competitors' prices (Phelps and Winter, 1970). Similarly, the
economy is dragged down by overestimation.
What would happen in this economy, with its potential for
disequilibrium and, say, increased disequilibrium, if aggregate demand
shifted onto a higher path? (11) I often studied an unidentified
spending shock in the private sector that operated to increase the
velocity of money and, if the central bank was slow to respond, would
drive both the price level and money-wage level toward correspondingly
higher paths--whether promptly or in a drawn out process. I supposed
that this velocity shock would be neutral for quantities and relative
prices if and when firms and workers formed correct expectations of the
money-wage and price responses to the upward shift in the demand price.
(12) Yet firms and workers have no way of perceiving such neutrality at
the start.
What ensues? My models implied the following: (13) Every firm
mistakenly infers that, as often happens, all or much of the increase in
demand it observes is unique to it; so in deciding how much to raise its
wage it is led to underestimate the rise of wage rates at the other
firms. Similarly, every customer-market firm in deciding how much to
raise its price is led to underestimate the extent to which the other
firms are going to raise their price. As a result, the firm raises its
price relative to what it believes the others are going to do but by
little--by less than it would do if did not underestimate the rise
elsewhere and less than the increase in its demand price; similarly it
raises its wage but by little--by less than it would do if it did not
underestimate the rise elsewhere. I added that "uncertainty"
might induce a "cautious, gradual response in the firm's wage
decision" (Phelps, 1968a, p. 688). (14)
Regarding quantities: The increase at each firm in customers'
demand sparked by the velocity shock causes the firm to recognize that,
at the initial price and output, it can now sell more without having to
lower its price. The firm, which was indifferent about a small increase
of output before, then sees the profitability of an increase so it steps
up its output. (15) Hence there is an increase in the maximum stock of
job-ready employees that the firm would retain in their entirety, thus
an immediate jump in its vacancies. Accordingly, the decreased quitting
brought about by perceptions of an improved relative wage is not a
reason for the firm to hire more slowly, so employment expands. As for
the hiring response, there is a hitch. The firm could dip into the
unemployment pool to acquire any amount of new employees but obtaining a
job-ready employee requires diverting current employees from production
to give the necessary job-specific training to the new recruit. But the
firm in stepping up output actually moves employees out of training into
production. Thus, increasing hiring has to wait until the decrease in
quitting has allowed the firm to restore and then enlarge its training
staff. (16)
The above are the impact effects of the demand shift. An adjustment
process follows. In my models, a firm would at some point notice that
its cumulative price increase had not cost it any of the erosion of its
customer base it had expected and its wage increase was not bringing it
any of the reduced quit rate it had expected. Moreover, following the
initial impact of the velocity shock on demand prices, any firm
supplying a specialized assortment of goods would experience a secondary
increase in its demand price (at the initial output) since the initial
price increases, all of them about the same size, do not generally have
the substitution effect that the firm had worried about when it
calculated its first responses. Owing to all this "learning,"
firms will raise their prices and wages again, bringing price and wage
levels nearer to their equilibrium levels. Even if expectations of the
inflation rate remain nil, prices and wages will go on rising until the
magnitude of the disequilibrium--the shortfall of the cumulative
proportionate increase of the price level from the proportionate
increase of velocity--has been eroded to the vanishing point. Along such
a path, the shrinkage of wage underestimation reverses the decrease of
quitting that powered the employment expansion, leaving the drain of the
unemployment pool to cause a net elevation of the quit rate; and the
shrinkage of both price and wage underestimation removes the firms'
desire for an elevated level of employment, so hiring does not increase
to offset the increased attrition. Thus attrition works off the increase
in employees now seen to be redundant. The price level as well as the
real wage and employment are all driven to their new rest-point values.
This recovery represents "equilibration" in the sense that
expectations of the cumulative increase of the wage level and of the
price level are brought into line with actual increases. (But the
starting point, thus also the rest point, might not be full-fledged
expectational equilibria, since expectations of wage or price levels may
be wide of the mark in both states.)
Yet my 1968 paper suggested that from each elevated employment
level (such as those reached during the expansion) there exists an
equilibrium path back to the initial state, a path along which not only
has the underestimation of the increase in wages and prices vanished
but, in addition, the expected increase of the wage level and of the
price level is just matched by the actual increase. Along any such path,
the currently low (but subsiding) unemployment is continuously
counter-balanced by the currently low (but subsiding) vacancy level so
that firms are trying neither to out-pay nor under-pay one another. (17)
In this respect, the subsequent model by Lucas (1972) differed from my
work in that it has the tight implication that, following the
disturbances of the current Lucas period, the economy immediately jumps
to equilibrium as a consequence of his imposing "rational
expectations." (18) In my thinking, market participants might at
any time be able to walk the tightrope of the equilibrium path, if such
exists, that leads from where they are currently to their initial state;
but, in general, they cannot be presumed to find their way along such a
path.
Relation to 'rational expectations.' The above framework
is not a closed system. It does not deliver a fully determined steady
state and is not intended to. The current level of vacancies has an
exogenous structural component that is a function of what the managers
guess to be the right value (i.e., shadow price) to put on having
another employee; and that shadow price is variable not determined by
the model. If that value jumps up, owing to impressions of some or all
entrepreneurs that future prospects have brightened, vacancies increase
and hiring will pick up--apparently out of the blue. (19) This feature
saves the model from being a mechanical apparatus leaving no room for
innovation and resulting structural change. (20)
In the model as best interpreted, the firms in figuring their
desired wage target have to form expectations of the average wage at
competitors without benefit of recent publication (let alone
observation) of these special wage rates. (21) So, in general, the labor
market is groping not toward equilibrium, in which the belief about the
wage at competitors is equal to their actual wage, but toward a
surrogate equilibrium in which expectations might, say, underestimate
the actual wage level (Phelps, 1972). Then the unemployment rest point,
given the same vacancy rate, is below that steady level consistent with
(expectational) equilibrium. (Of course, the gap between perception and
reality is changeable.)
Last but not least, positing rational expectations equilibrium is
not just inaccurate as a way to close the model in the same sense as
postulating rational choice is taken to be inaccurate: It is
inappropriate to impose on the model. In a highly innovative economy and
thus one subject to change, firms--even firms in the same industry and
location--are all thinking differently. So a firm would have no grounds
to reason, as it implicitly does in rational-expectations theory, that
"since I have calculated I must raise my wages by x percent, I
should now take into account that my competitors are planning to do the
same; so I must now adjust my wage increase even more ..." This
kind of inductive reasoning to arrive at the right expectations is
inapplicable. That is the thesis of my piece (Phelps, 1983) in the
Frydman-Phelps volume.
More fundamentally, the public cannot form "rational
expectations" about future probability distributions when the
future is being created currently by the new ideas and consequent plans
of entrepreneurs to which the public has no access and of which the
entrepreneurs themselves are uncertain (Calvo and Phelps, 1977). If
firms are engaging in creative activity, "running regressions"
on past data will not give a firm an applicable prediction of what these
firms are planning now to do in any respect (See Frydman and Goldberg,
forthcoming). Understanding Keynes-Fellner probabilities for use under
uncertainty, one gives less weight to historical projections of what
they are up to when one understands that they are preparing a surprise.
So, if asked whether my theory was superseded by the Lucas model, I
would have to say that if an economy possesses dynamism, so that fresh
uncertainties incessantly flow from its innovative activities and its
structure is ever-changing, the concept of rational-expectations
equilibrium does not apply and a model of such an economy that imposes
this concept cannot represent at all well the mechanism of such an
economy's fluctuations.
Relation to Friedman's 1968 model The above theory of the
"natural rate" and deviations from it driven by misunderstood
shifts and disturbances is often taken to be essentially identical to
that presented by Milton Friedman (1968). The two models are then
treated as simultaneous discoveries of the same thing. In fact they
represent discovery of two distinct phenomena. Friedman's is a
model of the natural rate of labor force participation while mine is a
model of the natural rate of unemployment. Myriad differences derive
from that distinction. For example, in the former model an unperceived
increase in demand is an unwelcome deviation from competitive
equilibrium while in mine it moderates a generally onerous volume of
involuntary unemployment. (Below I will briefly comment on a monetary
policy aimed at high employment.)
Relation to Keynesianism. Some have kindly commented that this work
and related work in the Microfoundations volume (Phelps et al., 1970)
was "revolutionary" (Pissarides, 2006; Samuelson, 2006). Two
comments cry out to be made, however. One is that my sort of micro-macro
modeling left standing some of Keynes's core beliefs: Effective
demand shifts, even "neutral" ones, typically impact on
business activity. Furthermore, the price level and the money wage level
are not perfect in equilibrating markets. (22) On the other hand, my
subsequent research endogenizing the natural unemployment rate has since
dissociated me from some other core parts of the Keynesian policy
position.
Use in a theory of optimum monetary policy. The first published
application of this expectational framework was in modeling the optimal
inflation policy (Phelps, 1967). (23) This was a reaction to the
emerging application of the Phillips curve (Phillips, 1958) in modeling
the "optimum" inflation rate (Okun, 1965). There were times
when this 1967 paper seemed to me to have been bypassed by the
rational-expectations based Taylor rule (Taylor, 1993, 1999). Yet my
paper has continued to bear fruit in studies of historical disinflations
(Sargent, 1999). The Economy Prize committee (2006) cited my research
viewing policymaking from an intertemporal perspective. So I want to
touch on that paper, which will be the main subject of the next section.
POLICY TO ALTER UNDESIRED EXPECTATIONS
My earliest work on policy from an intertemporal point of view was
about fiscal policy in a moneyless economy. In Phelps (1965) my premise
was that, in general, the public might expect the present discounted
value of their "lifetime" tax liability to be less than was
foreseeable. (I cited David Ricardo in defense, some years before
"Ricardian" came to denote what he rejected.) The result,
according to the model there, would be an over-demand for consumer goods and an undersupply of labor to the market economy. A policy of
"fiscal neutrality" would align the expected lifetime tax
liability in present value terms to the expenditures and transfers that
the government expected to make. If the public did not possess rational
expectations, tax rates would be set either higher or lower than would
otherwise be necessary for neutrality. Thus was born the thought that
market expectations matter for supply and they may be undesirable, so an
"optimal" policy would correct such expectations.
The key premise of the 1967 paper was that the public's
expectations of the inflation rate might be undesirably high and that
the only way the government authorities could induce the public to lower
its expectations was to disappoint those expectations by forcing the
actual inflation rate to be lower than the expected inflation
rate--until the expected rate is down to the acceptable level. Another
premise was that unexpected inflation brings above-natural employment
and unexpected disinflation brings below-natural employment, that is,
above natural unemployment; thus "disinflation," as I later
called it, would entail a transition cost: the cost, economic and
social, of a transitory bulge of the unemployment rate above the natural
level, which could be realized if the authorities were to resign
themselves to ratifying current inflation expectations by setting
effective demand as to realize the natural unemployment rate. These
ideas were then imbedded in a setting formally like the familiar model
of optimum capital accumulation by Ramsey (1928). The expected inflation
rate, x, takes the role of the state variable played by the capital
stock in Ramsey's model; the deviation of the actual inflation
rate, f from x is analogous to the deviation of consumption from income.
In this exploration, the policy variable was fiscal--the demand level
brought about by the size of the balanced budget, which leaves the
public debt constant--and monetary policy stabilized investment demand
so as to keep constant the capital stock. The analysis (done in 1966)
did not go very easily and in my later book (Phelps, 1972a), done in
1969-70, the problem was simplified: inflation policy was conducted by
the monetary authority and fiscal policy is supposed to neutralize
effects on capital and public debt. In brief, the problem is to find the
policy function f(x) that maximizes the possibly discounted utility
integral subject to the differential equation dx/dt = [beta](f - x),
[beta] a positive pseudo-constant.
The results: If the expected inflation rate is greater than (less
than) the rest point level to which an optimal policy will bring it
down, so there is a gap to be filled in, an optimal policy always
requires driving the inflation rate below the currently expected rate,
no matter the short-term gain. The greater the initial excess of the
expected inflation rate over its rest point, of course, the greater is
the size of the optimum deviation of actual inflation from expected
inflation--and thus the greater is the initial increase in unemployment.
The smaller is the utility discount rate, the lower is the rest point
target for the expected inflation rate and the greater is the optimum
size of the initial shortfall--the greater, then, the near-term pain and
the long-term gain. The greater is the costliness of decreased
employment, the smaller is the optimum initial deviation--the smaller,
then, the optimum deviation of unemployment from its natural level--and
thus the slower the speed of the disinflation.
Looking back, it may be that my 1967 paper was the father of what
came to be called inflation targeting. (24) However, I was aware of a
complication standing in the way of so simple a characterization of
optimal monetary policy. In the last pages of the uncondensed discussion
paper from which the published paper was extracted (Phelps, 1966a) I
examined a richer model in which the unemployment rate, u, is sluggish
(as in my 1968 paper) and is thus an added state variable alongside the
expected inflation rate. Then the optimal policy function, f(x, u), does
not generally drive the expected inflation rate monotonically toward its
rest point level. An initial unemployment rate far above or below its
natural level may drive the optimal inflation rate above or below the
expected inflation rate even if the latter is currently at its rest
point level. But this expected rate will sooner or later loop back to
its rest point while the unemployment rate goes to its rest point, the
natural unemployment rate. The interest rate rule made famous by Taylor
(1993) has the same character although it derives from optimizing policy
in a different sort of problem--optimal stabilization of the inflation
and unemployment rates around their means under "rational"
expectations.
It might also be said that my 1967 and later works planted the idea
that the function of the central bank is the management of inflation
expectations--the idea that if the central bank will monitor and
stabilize the expected inflation rate, the actual inflation rate will
not get out of hand for long. Parametric shifts may drive the price
level onto a different path but they will not permanently alter the
trend growth rate of the price level. (I myself may have thought that.)
In an economy operating under imperfect knowledge of the economy's
future prospects, there is always the possibility that the central bank
will seriously misestimate the natural real interest rate. In that case,
the central bank's interest rate rule does not start off with the
right constant term from which the real interest rate set by the bank is
to deviate in response to a discrepancy between the expected inflation
rate and the target rate. If the natural real rate is underestimated
while everything else is perfectly gauged, the bank will set its real
rate too low to hold inflation at the level it intended (Phelps, 2006d).
I would make another comment based on the imperfect knowledge of
participants. Some advocates of rational expectations complain about
expectations that are adaptive as in my 1967 model (Lucas, 1976). The
discussion of "routine stabilization" in Chapter 8 of my 1972
book recognizes that expectations will not be adaptive in any rigid way
in the face of identical repetitions of the same experience. (The
coefficient could not be a genuine parameter, fixed from disinflation to
disinflation.) Yet this point is not sufficient to establish the aptness
of the postulate of rational expectations. (25) Dynamic economies do not
have identical repeated games ("one never stands in the river at
the same place twice," as the Chinese say), there is a diversity of
opinion in markets, and a policymaker does not fall into one of a fixed
set of types. (Even Paul Volcker had to earn credibility.) Keynes
believed that market players' expectations cling to the latest
model until contrary evidence has piled up enough to shatter that model
and open the way to a new model and radically different expectations.
The adaptive expectations equation is an approximation of such a
process.
STRUCTURALIST MODELS OF NATURAL RATE SWINGS AND SHIFTS
The long swings and large shifts of the unemployment rate without
rising inflation or disinflation that have been observed over the past
several decades in OECD countries--and, for that matter, the formidable
inter-country
differences in unemployment rate--suggest that powerful forces have
impacted on the natural unemployment path itself. Indeed, many scholars
in the early decades of the 20th century sought to explain booms and
crises in terms of real market forces rather than monetary forces. Any
adequate explanation of the failure of the unemployment rate to regain
its pre-bull-market level in the mid-1920s almost certainly requires a
theory to "endogenize" the natural rate.
A non-monetary theory of the (path of the) natural unemployment
rate began to develop in the 1980s built on the same employee training
model and the customer market model I had used in the 1960s. An austere
exploration in that direction (Calvo and Phelps, 1983) focused on time
preference and wealth but lacked unemployment. Some two-country modeling
(Fitoussi and Phelps, 1986, 1988) focused on overseas interest rates and
exchange rates but it lacked a natural rate. Closed-and open-economy
models with the desired features emerged in a series of research papers
from 1988 through 1992 and in a volume (Phelps, 1994) with the
substantial help of Hian Teck Hoon and Gylfi Zoega. (26) This was a more
radical rewrite of macroeconomics than my micro-macro research in the
late 1960s. The theory showed how wealth in relation to after-tax wages
and to productivity impacts on the propensity to quit and thus the
incentive-wage curve; the world real rate of interest, future prospects
and some other forces impact on the shadow price firms place on their
business asset--employee or customer; and these impacts disturb or
permanently alter the natural rate itself (Phelps, 1994). I loved this
theory. It depicts increases in the overseas real rate of interest as
contractionary, contrary to the Keynesian Hicks-Mundell-Flemming model
(where "velocity" is stimulated) and contrary to the
neoclassical Hicks-Lucas-Rapping model (where labor supply is
increased). A real exchange rate depreciation caused by overseas events
would over some range of parameters lead to contraction, gradually
attenuated by a gain of customers, contrary to Keynesian thinking.
This supplementary theory makes clear how three structural forces
in the 1930s may have pushed up the natural unemployment rate: (27)
First, the specter of war hung over the U.S. as well as Europe in the
second half of the 1930s, which must have damped investment activity,
including acquiring new employees (Phelps, 2006a). Second, the Social
Security Act reduced after-tax wages, yet in turn reduced private
wealth--a nullifying effect; but it created "social wealth,"
which has net contractionary effects (Hoon and Phelps, 1996; Hoon,
2006).
Finally, my models to study "structural booms" showed
that the sudden emergence of new prospects for innovation, in raising
the shadow prices, would induce firms to hire and train increased
employees in anticipation of the rise of productivity that lies ahead;
its actual arrival raises the opportunity cost of investing in employees
and customers (Fitoussi et al., 2000; Phelps and Zoega, 2001). In this
view, the 1930s soar of productivity was largely not an expansionary force; it was the anticipated fruit of the earlier investment boom and
largely contractionary. For me this was revelatory work, as it saw the
well-functioning capitalist economy as driven by unseen and visionary
forces springing from the creativity and opportunity of business
people--forces that cannot be imagined to obey any stationary stochastic
formula (Phelps, 2006d) (28)--nor indeed any predeterminable stochastic
formula (Frydman and Goldberg, 2007).
To sum up: The completed theory of activity that incorporates the
above modeling of natural unemployment into the 1960s modeling says that
employment increases in either or both of two ways: Increased effective
demand lifts employment off its present equilibrium path and actual
money wages climb above their expected path. An upward shift of natural
employment pushes up actual employment though by less than the natural
increase and actual wages are driven below their expected path. In the
past 30 years the focus of attention has swung away from effective
demand shifts and swings under the tacit assumption that the natural
rate of unemployment had moved little and toward shifts and swings of
the natural rate itself under the tacit assumption that effective demand
is not a problem, at least not when the central bank has a good monetary
policy. We would not have gotten to this level of understanding had it
not been for the development of both the monetary and the structuralist
elements of the complete theory.
THE BUSINESS OF GROWTH
In neoclassical economics, the objects of the theory were not human
endeavor as we know it--only "prices and quantities." There
was a disconnect from history and the humanities. Neoclassical growth
theory was conspicuous in having no people in it. It explained the
accumulation and investment of physical capital yet the driving force in
that story--increases in knowledge, called "technology"--rains
down exogenously, like manna from heaven--and the selection among new
technologies is instantaneous, costless and error-free. Though in fact
crucial for growth, a human role over a vast range of activities
involving management, judgment, insight, intuition and creativity is
absent.
Nowhere was that character of neoclassical theory more evident than
in the theory of national saving. The model by Ramsey (1928) was the
prime example and another was my neoclassical model of risky wealth
accumulation (Phelps, 1962). At Penn I thought it might be fruitful to
stop modeling the nation as a sort of infinite-lived "single
agent" and imagine instead a sequence of generations of people
connected by bequests. The paper by Phelps and Pollak (1968) solved the
puzzle of how much each generation would save in "game
equilibrium" and confirmed that more is involved in the saving
decision than technocratic considerations: the rate of time preference
and the rate of return to saving. Each generation's selfishness
also matters (See also Phelps, 1973). (29)
In another paper I explored the idea that technological progress
requires the allocation of people to research (Phelps, 1966b). A
technical progress function described the relationship between the rate
of technological progress and the magnitude of the research activity. To
be sure, the larger the size of the research input maintained over the
years, the faster will be the climb of the technology variable. Yet the
proportionate rate of progress is diminishing, even if the absolute gain
per unit time is increasing. I began investigating whether an increasing
volume of research effort through time could stave off the slowdown of
the rate of progress. I found that, with a suitable specification of the
progress function, exponential growth of the research input would lead
gradually to exponential growth of the technology variable. This led
rather quickly to the uncovering of two implications, both of them
intriguing.
An obvious implication was that the higher is the level of the
exponential growth path of the research input, the higher would be the
level of the exponential growth path to which the path of the technology
variable would approach. To a novice, then, it would seem that the
greater the effort society puts into research the better. But economists
care also about consumption--indeed some care only about that. I built a
simple model in which consumption was produced (using the current
technology) by all the population who did not do research. I found that
up to a point the greater the ratio of research input to non-research
input, the higher the level to which the consumption path would
approach. But after that point further increases in that ratio would
actually decrease consumption, since the gain in technology achieved
would not repay the cost of pulling labor out of producing the consumer
good. This was another Golden Rule for my collection of such rules
(Phelps, 1961, 1966c). A strange thing was that one could put a number
to the ratio. It is equal to one: one researcher for every producer.
The other implication was that a larger population would provide a
larger number for research and thus permit a climb onto a higher
technology path (Phelps, 1968b). The historical applications are
obvious. Had it not been for the vast population increase beginning in
the 18th century and only now winding down, the number of minds could
have achieved only a small proportion of the colossal technological
advance of the past two centuries. So we can be grateful for the
population explosion--my Mozart Proposition, as it was called. On this
logic, economic growth in the 21st century will be faster than in the
20th.
No one standing at the threshold of the 18th century could have
predicted that population would explode or know what the probability of
such a "regime" was. No one could have known that the progress
function would continue to make research so productive of technological
advances. This reminds us that Knightian uncertainty hangs over most
anything of importance and that centuries of under-forecasting can
occur.
"Research" and "technology" here are less
narrow than they might be supposed. The technology includes the original
screenplays that pile up at MGM, from which future movies can be made,
and the inventions of Wagner and Stravinsky, which subsequent composers
draw on. Yet there are two limitations of the focus on
"research." One, which I was well aware of in the 1960s, was
that new technologies are not costlessly absorbed into the market
economy, so the link from invention to innovation is not prompt or
reliable. It takes a Schumpeter-type entrepreneur to solve the problems
in developing and marketing an innovation; it takes Nelson-Phelps
managers to solve the problem of evaluating the innovation's likely
gains, if any; it takes Amar Bhide-type consumers to solve the problem
of evaluating the gains, if any, of bringing an innovation home; and it
takes Marschak-Nelson financiers who can do better than choosing
randomly in deciding which entrepreneurs to back. In sum, it takes a
whole village for an innovation to be developed, launched and adopted.
The paper by Nelson and Phelps (1966) was not written in the
terminology of Ellsberg and the Savage axioms but it is about ambiguity.
The manager of a vineyard confronting a new insecticide might have no
idea what the "expected value" of the benefit and the cost of
using a new insecticide would be--or what the probability of successful
adoption would be--if he lacked an education in basic science and
humanities. A modicum of knowledge of engineering, chemistry and other
fields improves a manager's ability to evaluate a new product or
technique and thus bolsters the manager's confidence enough to
encourage him to evaluate innovations that he would otherwise ignore.
(30)
In Phelps (2000, 2005) I argued that continental Europe is
under-prepared to be a launch pad for novel innovations such as those of
the internet revolution by a dearth of Nelson-Phelps-type managers--and
of venturesome Bhide-type consumers--owing to the scarcity of university
educations. (How then did the Continent latch on to the American things
during its Glorious Years? Those things were too old to be still very
novel.) Similarly, Bhide and Phelps (2005) argue that the vast learning
that managers and consumers have to do is a drag on successful
innovation in China. Otherwise, investment and consumer demand would
both be stronger, the current account surplus smaller and growth faster.
The other severe limitation of the research view was, of course,
that business people are the conceivers of the bulk of the innovations
of a capitalist economy. Capitalism is Hayek country. In such an
economy, Hayek says, there is a "division of knowledge" among
different persons--not only dispersed information ("knowledge of
current prices") but, crucially, dispersed know-how about "how
commodities can be obtained and used." (31) (Hayek, 1937). Hayekian
entrepreneurs are constantly striving to expand their knowledge into
some area where knowledge is scarce or nonexistent in order to see
whether they might develop something commercially saleable that no one
else has conceived before. This is creativity--acquiring ideas that no
one else has (or likely will have without doing the necessary
exploration). Later he sketched a model of how the entrepreneur, not
really knowing its commercial value, has to launch the innovation on the
market to "discover" its value, if any (32) (Hayek, 1968).
I have tried in recent years to elaborate and apply Hayek's
theory of innovation. A recent paper formalizes the theory of innovation
with the theoretical device of a periodic fair in which entrepreneurs
and financiers meet and enter into matches despite incomplete
information (Phelps, 2006b). I have also been fortunate in coming up
with some empirical findings: The presence or absence of important
financial institutions, such as the stock market, appears to be quite
important for the readiness of an economy to seize an innovative
opportunity (Phelps and Zoega, 2001). Furthermore, various attributes of
a country's economic culture serve to animate entrepreneurs and,
more broadly, to encourage them by offering them a willing workforce and
a receptive marketplace for their innovations (Phelps, 2006c) (See
Tables 1, 2a, 2b and 3). The direction in which I have mainly gone is to
argue that, in advanced economies at any rate, innovation mechanism and
discovery largely shape the experience and the rewards of participating
in the economy.
THE GOOD ECONOMY: INNOVATIVE AND INCLUSIVE
My interest in the modern economy and my familiarity with some
existing wisdom on human fulfillment have drawn me in the past couple of
decades to the question of the good economy. This was not entirely new
territory for me. In showing that "statistical
discrimination," which deprives individuals of opportunities and
weakens their incentives to prepare and to excel, is all too natural in
the presence of information costs, I was suggesting that it is hard to
prevent stereotyping and that an ideal economy is out of reach (Phelps,
1972c). In some work on morality in markets I argued that a little
altruism inhibits various antisocial acts that, owing to asymmetric
information, the market mechanism and legislation cannot prevent
(Phelps, 1973). The book by Rawls (1971) stimulated me to expound to
economists his conception of "economic justice" (Phelps,
1973b; Phelps, 1985) and to apply (he preferred "test") that
conception in imperfect-information models of taxation (Phelps, 1973a;
Ordover and Phelps, 1975). As noted, these ideas in every case hinged on
one or another informational imperfection. Yet all of these models and
Rawls's model of the economy too took an austere view of the
sources of human satisfaction, a view inherited from classical
economics. These and other classical models left us without conceptions
of the good economy suitable to modern possibilities.
It is axiomatic that one's conception of the good economy
depends upon one's conception of the good life. For Calvin (1536)
the good life consisted of hard work and wealth accumulation. For Hayek
(1944) and Friedman (1962) the good life was a life of freedom. The
appeal of work and of freedom may be that they are necessary for a good
life. (33) But what is its substance, its essence?
In a 2003 conference I proposed that a career of challenge and
personal development is the essence of the good life (Phelps, 2007). It
was commented that this is a "very American" view. In replying
I began to remember that this view is the classical theory of what the
good life is, a theory that originated in Europe: Aristotle declared
that people everywhere wanted to expand their horizons and
"discover their talents." The Renaissance figure Cellini
described the joys of creativity and "making it" in his
Autobiography. In Baroque times Cervantes and Shakespeare dramatize the
individual's quest--a moral view Barzun and Bloom call vitalism.
Such a view is reflected to a degree by Jefferson and Voltaire among
other Enlightenment figures and is interpreted by the pragmatist
philosophers William James and Henri Bergson. (34) The
"self-actualization" in Maslow and
"self-realization" in Rawls both refer to all of this as do
the "capabilities" and "doing things" in Sen (1995).
This concept of human fulfillment obviously differs from Bentham's
theory of happiness, or "felicity," and it need not correlate
with reported happiness. (35)
If that is the substance of the good life, it appears that a good
economy promotes "vitalist" lives. It produces the
stimulation, challenge, engagement, mastery, discovery and development
that constitute the good life.
There are also the claims of justice. The disadvantaged have a
right to inclusion in the economy and thus also in society. In the
perspective of Rawls (1971) inclusion means that the least advantaged
toil in the formal economy under terms affording them prospects of
self-realization--their pay good enough (and their joblessness
infrequent enough) to permit them to function as spouses, parents,
citizens and community members. Rawls's economics, being largely
classical, left no room for self-realization obtained from business
life. In my discussion I say that many and perhaps most people draw deep
satisfaction from taking part in what is the central institution of an
economically advanced society, namely its business economy, and that for
minorities such employment is the spine of social integration (Phelps,
1997). Moreover, in a society having a vitalist work culture that values
mental challenge, organizational responsibility and individual
initiative, it is not impossible that even low-end employment
contributes to self-realization; so a high degree of inclusion may be
all the more valuable in an economy offering vitalist careers (What I
say below does not hinge on that). In short, a good economy also
promotes inclusion.
A country can promote both vitality and inclusion by fitting its
economy with the right mechanisms. Our theoretical understanding of
modern economies, its rudimentary state notwithstanding, and the bulk of
empirical evidence strongly suggest that careers of vitality require an
economy generating change and a generally forward motion; and such
economic dynamism is best served by a system of institutions and
mechanisms like capitalism--regulated and de-regulated as required in
order to provide a high rate of commercially successful innovation of
non-coordinated entrepreneurs, financiers and consumers. Our theoretical
understanding of incentive design and empirical observation strongly
suggest that inclusion is most effectively served by fiscal
incentives--a system of public low-wage employment subsidies as well as
classical education subsidies in order to attract marginalized workers
to the business sector, shrink their unemployment rates and boost their
pay. (36)
Are vitality and inclusion incompatible, gains in the one undoing
gains in the other? Two fallacies here have gotten in the way of
consensus for action. In the West, it is believed by many, with no
foundation I know of, that a fiscal policy aimed at broad economic
inclusion would substantially preclude ample economic dynamism and thus
a vitalist society. I have argued that, on the contrary, suitably
designed employment subsidies would restore the bourgeois culture,
revive the ethic of self-support and increase prosperity in low-wage
communities. That would boost a country's dynamism, not weaken it,
and also strengthen popular support for capitalist institutions (Phelps,
1997).
It is believed by many others that the dynamism of an
entrepreneurial economy harms disadvantaged workers. I argue that
economic dynamism works to raise inclusion. Heightened entrepreneurial
activity indirectly lifts up both those already enjoying much of the
good life and--up to a point, at any rate--disadvantaged workers too,
taken as a group. The resulting dynamism, the stepped-up rate of
commercially successful innovation, creates jobs in new activities and
in so doing it draws the disadvantaged into better work and higher pay.
A look at the experience around us in the present decade suggests that
the disadvantaged have suffered an acute failure of inclusion in
economies that are resistant to innovation. Heightened entrepreneurship
also tends to serve the disadvantaged directly by making their jobs less
burdensome and dangerous--and perhaps also more engaging. An innovative
economy is not unjust, since it helps the disadvantaged as well as the
advantaged (Phelps, 2007).
Now, in Europe, a great many countries are searching for a route to
greater general prosperity and greater economic inclusion of
disadvantaged groups. There is a debate in the making between, on the
one hand, those neoclassicals who would put the emphasis on pushing more
resources into the economy (more technology or more human capital) as a
way of raising output and employment; and, on the other hand, those
modernizers who favor a strategy of pulling existing resources into
innovative activity and general business activity through reforms of
labor law, company law and the financial sector.
My conclusion is that a morally acceptable economy must have enough
dynamism to make work amply engaging and rewarding; and have enough
justice, if dynamism alone cannot do the job, to secure ample inclusion.
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NOTES
(1.) Several European nations saw rising opposition to modernism in
the 19th century and proceeded in the interwar period to hamstring their
modern economies with the institutions of a 20th century
"corporatist" system of permissions, consultations and vetoes
making business subservient to community and state.
(2.) This recollection focuses on the main works of mine relating
to imperfect information and incomplete knowledge. That leaves out
several papers, including ones on risky wealth accumulation,
factor-saving bias in technical change.
(3.) Tonnies writes of the "anonymity" of transactors in
Gesellschaft, that is, capitalism. That is a fair observation of
classical perfect competition. But in my work on modern economies the
entrepreneur, financier, manager, employee and customer are not exactly
anonymous. Firms acquire employees who are identifiable and
nonsubstitutable; firms know their customers; customers know their
supplier; and so on.
(4.) Ambiguity and vagueness come into use with papers by Ellsberg
(1961) and Fellner (1961).
(5.) I do not mean to suggest that the modern economy has led to a
net increase in total risk, measurable and unmeasurable. My sense is
that much of the huge gain in productivity was brought by modernization
rather than scientific advance and this gain has in turn permitted more
and more participants to take jobs that offer reduced physical dangers
and moral hazards. Financial innovations have helped to reduce the risks
created by modernization. It is plausible that the wide swings in
business activity that finance capitalism imposes are no worse than the
waves of famine and pestilence that afflicted traditional economies.
(6.) One could argue that his textbook (1948) and Foundations
(1947) began a Restoration that saved the economics heritage from the
radical Keynesians, institutionalists and behavioralists of that time.
(7.) Kindred spirits tilling the field or adjacent fields in the
1960s include Robert Glower, Robert Aumann, Brian Loasby, Armen Alchian,
Axel Leijonhufvud, Richard Nelson, Sidney Winter, Arthur Okun, and
William Brainard. They were joined in the 1970s and 1980s by Roman
Frydman, Steven Salop, Brian Arthur, Mordecai Kurz and Martin Shubik. In
the 1990s and 2000s Amar Bhide and Alan Kirman joined in and both Thomas
Sargent and Michael Woodford tested the waters.
(8.) I did not explicitly put in these modernist concepts into
models so much as I took out some neoclassical properties so that the
models might be more consonant with modern thinking.
(9.) Imaginably, random forces might come to the rescue but the
expectations would still be incorrect ex ante. In my modeling I always
excluded such random forces for the sake of clarity--forces that are the
essence of the New Classical model.
(10.) See Shapiro and Stiglitz (1984). Calvo and Phelps (1983)
derived a wage curve in a contract setting.
(11.) I was always aware that, in the version of the model in which
all firms are ready at the drop of a hat to jump their money wages and
prices, there being no set-up costs of doing so, a demand shock in a few
cases might theoretically have no effect on quantities and relative
prices. Take a sudden announcement by the central bank that it is
immediately doubling the money supply. If that shock is very public (it
could not be missed by anyone) and its consequences are common
knowledge, and if it is neutral for equilibrium values, there would
result in the models I was studying an immediate doubling of money wages
and prices; both output and employment would be undisturbed. Keynes
(1936) also implicitly noted such exceptions.
(12.) This means that whatever the equilibrium employment path
leading from the economy's initial state, the velocity shock is
neutral for that equilibrium path and every other equilibrium path,
whether attained or not.
(13.) I am referring here to a fusion of my 1968 paper with
Phelps-Winter (1970) and I am drawing on analyses and commentary in
Phelps et al (1970), Phelps (1972a) and Phelps (1979).
(14.) It would be incorrect to infer that the quantity effects of
effective demand shifts are present because a sort of wage
"ridigity" is imposed in the end. There would be quantity
effects anyway, though smaller and maybe less prolonged.
(15.) If as in my 1968 paper every firm raised its price fully so
as to clear the market for its initial output, the increased profit
margin would have the same effect.
(16.) Overtime arrangements with employees are another way, of
course, by which the training staff can be spared and even increased in
order to permit a step up in hiring.
(17.) Along this path the expected money-wage level is always that
necessary, given the expected price level, for "labor market
equilibrium" and the expected price level is always such, given the
expected wage level, as to satisfy the condition for "product
market equilibrium." An explicit analysis of this equilibrium path
for a non-monetary model without a customer market is Hoon and Phelps
(1992). An analysis of this path upon making the product market a
customer market can be found in Phelps, Hoon and Zoega (2005) and
Hoon-Phelps (forthcoming).
It should be added that for labor-market equilibrium there is
another condition and corresponding equation. The firm has to get right
the shadow price it attached to having another job-ready employee, thus
to get right its calculation of its vacancies. This implies that the
firm has correct expectations about the level to which market wages are
heading over the near term, which in turn means correct expectations
about the rate at which wages at the other firms are going to be rising
over the near future, not just their current level.
(18.) This is jumping to a point in Lucas's model, which is
analogous to jumping onto the equilibrium knife-edge path in my model.
In Lucas's period model, there is a Lucas period: before its end no
national data are available and at its end all the national data are
published. In my continuous-time models there might be lagged data on
wage inflation etc. but not on wage levels, certainly not on levels at
comparator firms (In fact, firms can form associations to share such
data and workers might form unions; but I had in mind a "free
market" economy without these interventions).
(19.) Keynes' "general" theory was general in taking
entrepreneurs' visions as floating--as arbitrary. The arbitrariness
of these visions is important for the firm's wage contract in Calvo
and Phelps (1977).
(20.) The model's projection of the economy's future path
is contingent on constancy of the exogenous part of the vacancy
function, though the actual path may well be disturbed by exogenous
changes in vacancies.
(21.) At some places in my papers the mean wage level is taken to
be known, as if recently published, but only in a variant model with a
fixed wage commitment over some interval of the future (Such a point is
on p. 701 in Phelps 1968a). Otherwise the wage is not known but is
inferred from unfolding circumstantial evidence.
(22.) Scholars unearthed for posthumous publication (Keynes 1983) a
draft chapter by Keynes entitled "The Uncoordinated Economy"
and Tobin, the leading American Keynesian, wrote that Keynes'
theory was about "expectational disequilibrium" (Tobin 1975).
(23.) This paper was written at the London School of Economics in
the early months of 1966 before I tackled the subjects of the 1968 and
1970 papers on wage dynamics and price dynamics.
(24.) Perhaps the earliest interest rate rule is that in Dewald and
Johnson (1963) but their rule does not drive any variable, such as the
inflation rate, to a target level. Neither do the proposed money supply
rules.
(25.) I was glad to explore with John Taylor and later Guillermo
Calvo the rational-expectations based New Keynesian modeling of wage and
employment determination in research done at Columbia in the 1970s (See
Phelps and Taylor, 1975, and Phelps, 1978). However I did not believe
that the rational expectations premise was satisfactory or even clearly
preferable to some flexible use of adaptive expectations.
(26.) Some of the many papers from that period and further
developments include Hoon-Phelps (1992), Phelps (1992), Zoega (1993),
Hoon-Phelps (1997), Phelps-Zoega (1997), and Phelps-Zoega (1998). Some
precursors are Phelps (1972b) and Salop (1979).
(27.) It is worth mentioning that the extraordinary technical
changes over the whole decade must have increased "frictional"
unemployment, although the latter is outside my models.
(28.) There is a touch of rational expectations in my supposing
that after a shift in the economy's structure or future prospect
the prices and quantities follow a perfect foresight path. But that
foresight is conditional on the absence of further shifts in the future,
while the model does not promise such shifts will not occur. The
economy's participants may very well be conscious of the
possibility that the future will not hold further shifts. But they do
not know what parameters shifts to anticipate and what their effects
will be. That may be only a crude approximation to ignorance of the
future but it may be better than no approximation at all.
(29.) Later Laibson (1997) applied the theory to a person having
future selves distinct from the present self.
(30.) The paper was ignored during the reign of rational
expectations dating from the mid '70s. But "a few good
men" bent on understanding the world took it up (Barro and
Sala-i-Martin, 1997; Aghion and Howitt, 1998). Results from regressions
run by Benhabib and Spiegel (1994) also revived the Nelson-Phelps
thesis. There, a crude version of Nelson-Phelps, in which all education
(even primary schooling) is useful for evaluating and absorbing
innovations defeated the Becker-Mincer thesis that all education (even
college education) belongs in the production function as an augmenter of
raw labor input. The glory did not last long, as Krueger and Lindahl
(2001) found mistakes and concluded that Nelson-Phelps did not work well
in Europe in the postwar era. I reply that the Continent had little real
novelty to cope with when it was catching up with U.S. technology in the
'60s and '70s, so no Nelson-Phelps managers were required.
Moreover, it is college education that is crucial for catch-up, not
total education.
(31.) Intertemporal equilibrium, he adds, probably unnecessarily,
entails that the expectations inevitably formed by firms be consistent,
but does not entail that all valuable knowledge has been obtained.
(32.) To embroider a little a remark by Amar Bhide, the
Schumpeterian chef works away in his kitchen to zero in on the exact
recipe that fills the bill while the Hayekian chef, having little idea
of what diners would like, experiments on his customers. See Hayek (1961
and 1968 lecture).
(33.) In any case, these conceptions of the good economy are not
rich enough to provide a political economy for our times. Calvinism
appears consistent with a property-owning market socialism. Aside from
Friedman's negative income tax and middle-Hayek's several
exceptions, both of them appeared more enthusiastic about a free market
economy--small government and atomistic competition--than the
speculative swings and gleeful commercialism of today's capitalism
(in those places where it thrives).
(34.) The French philosopher Bergson rose to fame in the years just
before the Great War with his book affirming "becoming" over
"being" and free will over determinism.
(35.) I know that recent researchers on happiness find that, after
a certain level, nations would not gain added happiness by accumulating
greater wealth with which to earn greater income (That sounds a bit like
the golden rule of asset accumulation). That finding, whether or not it
will stand up, does not imply that there is some satiation level of the
classical gratifications. It only suggests that, after a point, higher
income does not boost satisfaction of the classical wants.
(36.) Rawls (1971) argues for going in this direction to the
greatest possible extent. I would inject here that Rawlsian justice in a
modern economy must consider the prospects for self-realization of
entrepreneurial types as well as the lowest-wage workers. But I will not
defend that here.
[c] The Nobel Foundation.
Edmund S. Phelps, 2006 Nobel Laureate and McVickar Professor of
Political Economy and Director, Center on Capitalism and Society, Earth
Institute, Columbia University. For discussions related to this lecture,
some of them stretching back decades, I am grateful to Philippe Aghion,
Max Amarante, Amar Bhide, Jean-Paul Fitoussi, Roman Frydman, Pentti
Kouri, Richard Nelson and Richard Robb. Raicho Bojilov and Luminita
Stevens gave creative research assistance.
TABLE 1.
Classical Wants, or Values, at Work Percentage of
respondents reporting each want
Opportuni- Taking Competing
ties for Interes- responsi- Taking with
initiative ting work bility Orders Others
United States 52% 69% 61% 1.47 1.11
Canada 54% 72% 65% 1.34 1.01
Great Britain 45% 71% 43% 1.32 0.57
France 38% 59% 58% 1.19 0.67
Italy 47% 59% 54% 1.04 0.48
Germany 59% 69% 57% 1.13 1.21
G7 ex Japan 49% 67% 56% 1.21 0.8
Survey results from Human Beliefs and Values Survey, Inglehart et al.
Taking Orders and Competing with Others are measured on a scale from
0 to 2, 2 highest.
TABLE 2a.
Pride and Satisfaction Derived from the Job (on a scale of 1-10) and
the Number Reported Satisfied (in per cent)
Job involvement
(pride derived Job Feel satisfied
from the job) satisfaction with life
United States 9.7 7.8 81%
Canada 9.0 7.9 84%
Great Britain 9.3 7.4 74%
France 5.7 6.8 59%
Italy 6.7 7.3 71%
Germany 6.0 7.0 71%
Japan 7.3 NA 53%
Feel satisfied Implied satisfaction
with home with life
life outside home
United States 87% 75%
Canada 89% 79%
Great Britain 85% 63%
France 72% 46%
Italy 81% 61%
Germany 76% 66%
Japan 62% 44%
Survey results from Human Beliefs and Values Survey, Inglehart et al.
TABLE 2b.
Circumstantial Evidence and Other Performance Indicators
Male labor Female labor Employment
force in % of force in % of in % of the
working-age working-age labor force
men, 2003 women, 2003 2003
United States 85% 70% 94%
Canada 85% 69% 92%
Great Britain 85% 67% 95%
France 76% 61% 90%
Italy 76% 45% 91%
Germany 79% 62% 91%
Labor Market
compensation output
per worker per hour
1996 in 1992
United States $31,994 100
Canada $23,751 --
Great Britain $22,008 73
France $24,192 92
Italy $21,822 --
Germany $23,946 92
Men in the labor force in % of working age men and employment in % of
the labor force are computed for 2003 (OECD); labor compensation per
worker is computed as the ratio of total compensation to the labor
force using 1996 data (Extended Penn World Tables); market output per
hour worked is for 1992 (SolowBaily).
TABLE 3.
Measures of the Economv's Dvnamism
Decision- Patents R&D intensity
making Turnover granted per adjusted for
freedom of listed working age industry
at work firms person structure
United States 7.4 118% 3.7 2.9
Canada 7.2 106% 1.3 1.8
Great Britain 7.0 65% 0.8 1.9
France 6.4 79% 0.9 2.2
Italy 6.7 63% 0.4 1.0
Germany 6.1 42% 1.5 2.2
Decision making freedom at work is measured on a scale from 1 to 10,
10 highest, averaged for 1990-1993 (Human Beliefs and Values,
Inglehart et al.); turnover of listed firms represents the number of
exits from and entries into each country's MSCI National Stock Index
from 2001 to 2006 as a % of the number of firms in 2001; patenting
data is averaged for 1990-2003 (World Intellectual Property
Organization); R&D intensity adjusted for industry structure is the
average in per cent of business sector value added for 1999-2002
using the G7 industry structure (OECD).