Prison labor effects on the unskilled labor market.
Derrick, Frederick W. ; Scott, Charles E. ; Hutson, Thomas 等
I. Introduction
The prison population has increased nearly five-fold since
1970--over eight percent per year--from 2 in 1,000 adults in 1970 to 9
in 1,000 adults in 1998. This has led to an escalating tax burden and a
significant opportunity cost from "warehousing" over 1.9
million inmates. Employing idle inmates "in factories with
fences" is getting renewed attention in Congress and state
legislatures to offset the expense, to more fully develop and use human
capital, and to increase the nation's productivity.
Unfortunately, the impact of prison labor on non-prison labor has
been debated over the years based solely on anecdotal evidence.
Proponents have touted the social benefits of decreased (net) cost for
prisons, improved behavior in prison, the potential for lower
recidivism, and rehabilitation through development of work and social
skills. Opponents of prison labor from the beginning have pointed out
the private costs of lost jobs and lost sales of industries outside the
prison.
This paper uses an immigration model and established estimates of
elasticities of supply and demand to estimate the labor market implications of prison labor. The prison labor impact estimates provide
the first empirical evidence of the impact of prison labor on non-prison
labor employment and wage rate. Sections I and II provide discussions of
the historical and current contexts, respectively. Sections III and IV
include discussions of the methodology and results. Section V includes
conclusions and directions for additional research.
II. Historical and Legislative Perspective
Prison labor was designed to "offset the cost of
incarceration" in the American penal system. New-gate prison,
opened in New York City in 1797, paid nearly all of its expenses during
the first five years from production within the prison. The prison was
sustained by the prisoners themselves, required no money from taxpayers,
and aided in the rehabilitation of the inmates. By 1825, the legislature
stipulated that the duty of prison agents was "to cause all the
expenses of any kind, to be supported wholly, or as nearly as shall be
practicable, by the labor of prisoners" (Morris and Rothman, 1995).
Artisans and businesses bitterly criticized public and private
enterprises that used prisoners because of the competition the prison
products created. Artisans also feared competition from ex-prisoners who
had learned the trade behind bars, actively making it hard for
ex-convicts to obtain jobs (Lewis, 1965). Artisans and businesses
exerted pressure on legislatures for restrictive laws on prison labor
and prison industry. Citizens argued that prisoners were taking the
"means of livelihood from local communities" (Walker, 1988).
Taxpayers argued such laws would "create a distinction in favor of
the mechanic, or a wish to tax the farmer, the merchant, and the
professional men, to support the convicts in our State Prisons"
(Lewis, 1965). The New York Legislature in 1835 passed legislation that
stated inmates would not be taught mechanical trades which competed with
domestic labor. The 1842 New York Legislature limited employment of
convicts to trades the prisoner had previously learned and practiced
prior to conviction. This evolving public attitude toward prison labor
was a precursor to the current debate.
The basic issue was how to protect free labor from low cost prison
labor. One model to do so, the state-use system, allows the training and
use of prisoners for the production of supplies for publicly owned institutions. Free workers viewed this as less competitive than the
other forms of prison labor but opposed the selling of excess production
in the market. To reduce competition, free laborers argued for diversity
in products and low volumes to minimize the impact on any one free
producer (Walker, 1988). Other methods argued for reducing competition
from prison labor included price controls, limiting the hours or numbers
of prisoners, requiring free market wages, and restricting capital
improvements (Garvey, 1998).
As unions became politically stronger in the latter half of the
nineteenth century, especially during the recessions of the 1870s and
1890s, opposition to prison labor grew. Congress in 1887 outlawed the
leasing of federal convicts to farmers and entrepreneurs but did not
pass legislation restricting interstate trade in prison production
(Morris and Rothman, 1995). At this time, many states depended heavily
on the revenue from prisoner leasing. The states refused to house
federal prisoners as a result of this legislation forcing Congress to
establish the federal prison system in 1891. In spite of these actions,
85 percent of prisoners worked in 1900. However, leasing of state
prisoners ended in the years preceding World War I when it was no longer
economically viable (Walker, 1988).
The first significant federal legislation limiting state use of
prisoners came in 1929 with the Hawes-Cooper Act. It mandated that
"prison-made goods transported from one state to another be subject
to the laws of the destination state" and allowed individual states
to ban the sale of prisoner-made goods within the state (Pencavel,
1967). This act effectively completed the transition of the market for
prison goods from the open market in the early nineteenth century to a
state-use system. (1)
At the Federal level, Federal Prison Industries Inc. (FPI)--trade
name UNICOR--was created in 1934. FPI, which employs federal prison
labor to produce goods for sale only to federal agencies, is designed
for rehabilitation, not profit. Eight of ten statutory legislative
mandates are public policy oriented. The mandates are to: employ the
greatest number of prisoners reasonably possible; concentrate on labor
intensive manufacturing; diversify industries so that no private
industry faces undue competition; diversify products so sales are widely
dispersed; minimize competition with private industry and free labor;
limit market share for any specific product; sell products to federal
and other government institutions; provide opportunity for prisoners to
learn skills useful in the free market; sell products at no more than
the current market prices; and operate in a self-sustaining economic
manner (Schwalb, 1994).
Congress further restricted prison labor in 1935 with the
Ashurst-Sumners Act making "shipping prisoner-made goods to a state
where state law prohibited the receipt, possession, sale or use of such
goods a federal offense." This effectively ended the industrial
prison era by banning interstate commerce in prison made goods. The
Walsh-Healy Act of 1936 "banned convict labor on federal
procurement contracts in the manufacturing, production, or furnishing of
any materials, supplies, articles or equipment used in government
contracts where the amount thereof exceeds $10,000." (2) In 1940,
Congress added further restrictions with the Sumners-Ashurst Act that
made it a federal crime to "knowingly transport convict-made goods
in interstate commerce for private uses, regardless of the laws in the
states" (Orlando, 1967). These actions, in concert with a shift in
the structure of corrections from work to rehabilitation through
counseling, training, and education, led to further reductions in prison
industries.
Increasing prison populations and prison violence led to increasing
costs of incarceration and renewed interest in employing prisoners in
the 1970's. Congress relaxed its stance on prison labor in 1979
with the Percy Amendment to the Justice Improvement Act which created
the Private Sector/Prison Industry Enhancement Certification program
(PIE) in seven states. PIE involves private entrepreneurs and the
federal government working cooperatively in prison-based joint ventures.
PIE programs must pay the prevailing wage; must show that prison labor
does not displace private workers or local businesses; and must limit
deductions for room and board, family support, and victim compensation
to less than 80%. The Amendment loosens some restrictions on "the
interstate sale of prison made goods to the federal government"
(Walker, 1988). PIE was expanded by Congress in 1984 and 1990 to
certificates for 50 localities. (3) During the past twenty years, more
than thirty states have enacted laws permitting the use of convict labor
by private enterprises. (4)
III. Current Prison Labor Context
Prison labor is small relative to the national economy--1.6 billion
dollars for prison industry output in 1997 relative to GDP of over 8
trillion dollars. Thus, total inmate production is less than two hours
worth of United States GDR The 76,519 inmates working in prison industry
jobs in 1997 amounted to 0.06 percent of the United States labor force
(Miller, Shelton, and Petersik, 1998). In addition, over ninety percent
of prisoners working have institutional support jobs--laundry,
maintenance, cooking, and other tasks--done for the prison where the
need for them is created by the prison itself.
Opponents of prison labor focus on the private costs born by the
competing companies, manufacturing associations, and labor. They argue
that low wage prisoners undermine competitive unskilled and semi-skilled
labor markets and decrease living standards of those who remain employed
by reducing wage rates. Unskilled or semi-skilled laborers would be the
most at risk since most prison jobs are unskilled or semi-skilled.
Industry critics point out that prison industries are exempt from
the Fair Labor Standards Act that dictates minimum hourly wages and
imposes constraints on employer behavior. Prisoners have no means of
filing a grievance or voicing complaints concerning hiring, firing, or
reassignment. Flanagan et al (1988) notes prison employment offers
workers "sub-minimum wages, no required health benefits, no unions,
no vacation time, no absenteeism, and no overtime." In addition,
federal mandatory sourcing requirements provide federal prison
industries employers a monopoly, further undermining competitive
markets. (5)
Supporters of prison labor argue that the danger from low prison
wages is overstated for a number of reasons. The value of the prisoner
marginal product is low due to a lack of job skills, low socialization skills, high labor/capital ratio, and high turnover rates with forty
percent of state prisoners released in less than three years (Ripley,
2002). Costs are higher due to inefficient shipping and production time
lost due to security--especially that lost due to lockdowns and the need
to carefully control tools (Kling, 1999). (6) Economies of scale are
often restricted due to limited market access. In addition, they argue
that unskilled and semi-skilled jobs are being transferred out of the
country to developing countries. To the extent that prison labor
repatriates these jobs, there will be minimal negative employment effect
of prison labor. (7)
Prison laborers may develop a work mentality including time
accounting, productivity, and economic reward, which improve employment
opportunities; increased future earnings; improved behavior in prison,
and lower recidivism. If recidivism is reduced by five percent, assuming
the average level of crime of $35,000 per year per criminal, the net
present value of the savings is approximately $11,000 per inmate
released (Kling and Krueger, 1999). Reynolds (1996) projected that the
employment of 25% of the prisoners would decrease taxpayer costs by 2.4
billion dollars, approximately 10%. As financially important as the
issue is and as heated as the arguments are, it is surprising there are
no estimates of the prison labor impact on non-prison labor.
IV. Methodology
Prison labor impact is similar to the impact of increases in labor
supply resulting from increased free trade and immigration. Immigrants
in the United States, while small in number relative to the host
population, are likely to make up a significant portion of the low
income and low skilled workers. Prisoner demographics are similar to
those of immigrants in that they tend to be younger, less educated, and
a larger percentage male than the population.
Immigration models as reviewed by Borjas (1994) and Friedburg &
Hunt (1995) commonly treat immigrants as separate inputs into
production. One can then derive a system of demand equations or its
reduced form for immigrant and host labor and estimate the elasticity of
substitution. Without wage data, the comparative static implications for
the change in wages and employment can be derived from the reduced form
assuming a competitive market. This approach is often implemented by
identifying metropolitan areas as labor markets and by comparing labor
market outcomes between high and low immigrant cities or counties.
Alternatively, one can estimate the labor market implications of
prison labor based on the elasticities of supply and demand. We model
the competitive labor market following Freeman (1999) as:
(1) Log S = A + [epsilon]Log W
where S is the quantity of labor supplied and W is the wage rate
(2) Log D = B - [eta]Log W
where D is the quantity of labor demanded.
In this double logarithmic functional form, [epsilon] and [eta] are
the absolute values of the wage elasticities of supply and demand
respectively. Equating S and D to the equilibrium quantity of labor (Q)
gives the market clearing wage and quantity of labor:
(3) Log W = (B - A) / ([epsilon] + [eta])
(4) Log Q = ([epsilon] B + [eta] A) / ([epsilon] + [eta]).
The employment of previously unemployed prison labor resources
increases the supply of labor by the number of prisoners employed,
increasing output and employment for society. However, the quantity of
free labor employed and the free labor wage rate will decrease. (8) If
the supply of labor increases by one percentage point due to increased
prisoner employment opportunities:
* Free labor employment will decrease by [epsilon] / ([epsilon] +
[eta]) percent;
* Prison labor employment would increase by ([eta] - [epsilon]) /
([epsilon] + [eta]) percent of the labor force;
* The net change in the quantity of labor employed is [eta] /
([epsilon] + [eta]) percent and results in an increase in total output
for society;
* The free labor wage rate will drop by 1 / ([epsilon] + [eta])
percent.
The greater the elasticity of demand for labor, the larger will be
the gains to the country and the smaller the losses to free labor. We
use demand elasticities of -.20 and -.31 based on the consistent
findings in prior labor market studies. A review of studies by Hamermesh
in the Handbook of Labor Economics (1986) concludes that the labor
demand elasticity is in the range -.15 to -.50 with the more elastic
estimates being found in studies of earlier time periods. The elasticity
of demand for low skilled workers is typically estimated to be -0.10 in
minimum wage analyses.
The more inelastic the supply of labor, the greater will be the
employment and output gains to the country and the smaller the loss of
jobs for free labor. Two estimates of the labor supply elasticity are
also used, 0.20 and 0.30. The two estimates used are consistent with
Pencavel's survey of the literature in the Handbook of Labor
Economics (1986) which concludes "that the elasticities of hours
worked with respect to wages are very small" and that the
behavioral responses "appear to be of a relatively small order of
magnitude."
The impact of employing prisoners is estimated using the above
elasticities assuming two prison employment levels. The impact of the
2000 prison employment of 85,432 (Correctional Industries Association,
2001) is shown in Tables 1 and 2. The impact of expanding employment to
twenty-five percent of the 1,443,175 (US. Department of Justice, 2002)
prisoners, the long term goal of prison industry managers is shown in
Table 3. The base of comparison for these impacts is the 16,425,356
unskilled civilian labor force(Bureau of Labor Statistics, 1999), the
likely affected group. Comparisons against the total civilian labor
force would show markedly less impact. Prison wages range considerably
across state, industry and type of work, but comparing the total revenue
with wages indicates that wages are, on average, very low.
Two alternative marginal rates of technical substitution (MRTS) of
prison labor for free labor are used: 1 to 1 (prison labor comparable to
civilian labor) and 3 to 1 (prison labor one third as productive). The
former provides a worst-case scenario for displaced workers. The latter
adjusts for prisoners having less education and work experience, and
being transient. An estimate that output per prison employee is roughly
one third that of the typical worker is consistent with immigrants in
the immigration research and with the ratio of the percentage of
aggregate output provided by prisons to the percentage of employment
that prisoners constitute.
These assumptions provide three scenarios. The first assumes an
MRTS of 1 to 1 and the current level of prison employment. The second
assumes an MRTS 3 to 1 and the current level of prison employment. The
final scenario assumes an MRTS of 3 to 1 and the long term goal of 25%
employment of prisoners. The resulting estimates are short-term
estimates of the impact of employing prisoners since price and wage
adjustments and capital flows will moderate the impact over time. In
addition, expanded employment will lead to greater consumption and
associated growth in labor demand.
V. Empirical Results
The current employment of prisoners, MRTS of 1 to 1 results,
presented in Table 1, provide estimates for the worst case private costs
argued by opponents of prison labor. The net increase in employment per
prison job is shown in the top portion of Table 1. For each 100 prison
jobs, society nets between 40 and 61 new jobs. The remaining prison jobs
result from crowding out of free labor. These assumptions suggest that
the 85,432 prisoners currently employed reduce free employment by
between 33,503 and 51,254 jobs out of a total 16,425,356 unskilled
civilian labor employment as shown in the middle of Table 1. To the
extent that demand is elastic and supply is inelastic, allowing the
additional employment to create its own demand, there is more limited
crowding out. To the extent that labor demand is inelastic, and supply
is elastic, there is more crowding out, with non-prison workers dropping
out as wages adjust to the increased labor supply.
Unions and other non-prison labor are especially concerned about
the wage effect of prison employment. Prison wages are typically below
the market wage by a considerable amount increasing the potential for
labor substitution. Supply and demand models assume that the employer
will employ up to where the wage equals the marginal revenue product of
the last worker. (9) As shown in the lower portion of Table 1, the more
inelastic the supply and demand are, the larger the wage adjustment will
be. Neither quantity demanded nor quantity supplied responds quickly to
additional labor, requiring larger wage adjustments to restore
equilibrium. Unskilled workers would pay the maximum financial price for
the additional prison employment. Depending on the elasticities, wages
decrease from .85% to 1.30%. At a wage of $6 per hour this reduction is
5.1 to 7.8 cents per hour or $102 to $156 per 2,000-hour work year. At a
wage of $10 per hour, the reduction would be 8.4 to 13.0 cents per hour
or $168 to $260 per year.
One way to account for the probable lower productivity of prison
labor is to count each prisoner as a fraction of a civilian worker added
to the labor force. Doing this by using an MRTS of 3 to 1 leads to 100
prison jobs creating between 80 and 87 new jobs, crowding out only 20 to
13 free jobs, respectively, as shown in Table 2. Current prison
employment would cost free unskilled workers between 11,056 and 16,916
jobs--between 0.28% and 0.43%. It also would cost labor from 1.7 to 2.6
cents per hour from a $6 wage or 2.8 to 4.3 from a $10 dollar wage.
Annual costs would be between $34 and $51 or $56 and $86, respectively.
Table 3 results assume expansion of prison labor to 25% of
prisoners (360,794 prisoners employed) and an MRTS of 3 to 1. This would
be nearly a four-fold increase over current prison employment. The net
relative employment results are the same as scenario 2: between 80 and
87 new jobs per 100 prison jobs and 20 to 13 free workers, respectively,
displaced. With current unskilled civilian employment, this would result
in between 46,691 to 71,437 displaced unskilled free workers. Wage
reductions would be larger, ranging from decreases of 1.19% to 1.81%.
This is 7.1 to 10.9 cents per hour for a $6 wage or 11.9 to 18.1 cents
per hour for a $10 wage. On an annual basis, reductions would be from
$142 to $218 or from $237 to $362, respectively.
At current prison employment and wage levels, there is an excess
supply of prison laborers, providing productivity incentives for the
successful applicants and the ability for employers to choose the most
productive workers. If prison employment is expanded, this would lead to
less motivated and less productive workers being drawn into the process.
This would lead to a decline in the (already estimated to be 1/3)
productivity, effectively decreasing the crowding out effects of a given
increase in prison employment.
VI. Conclusions
These results are consistent with the immigration literature that
finds little impact, at most, on wages or unemployment. Lalonde and
Topel (1991) note that the large flow of immigrants during the
1970's amounted to only 2.5 million extra persons in the labor
force. They found relatively small and quickly dissipating impacts of
immigration, even on close substitutes. This labor inflow is relatively
small compared to the increase of over 20 million extra persons in the
labor force as a result of the baby boom and the increased labor force
participation of young women. Thus the increase to 315,418 prison
workers would be relatively small compared to shocks the labor market
has already received. This suggests that there is sufficient labor
mobility, including low wage labor, and/or growth to assure that
cross-sectional or time series effects of prison labor will be minimal.
Our results suggest that even a return of prison labor to the free
market would have little employment impact on free laborers. Employing
every inmate for 2,000 hours (50 weeks of 40 hours per week) per year at
a value of production of the minimum wage would account for only 0.2
percent of GDP, which is less than the typical "statistical
discrepancies" (Kling and Krueger, 1999). This estimate of the
prison employment impact is likely to be inflated as it is unreasonable
to assume full employment, no decline in marginal productivity and all
new production. The estimates also overestimate the impact of prison
labor to the extent that prison industries purchase materials and
equipment, providing additional employment and income feedbacks locally.
These secondary impacts through business-to-business purchases and tax
revenue impacts will mitigate the negative direct job implications on
the local community.
The political debate over employment of prisoners has often been
heated with accusations that employing prisoners takes away the
livelihood of free workers and gives employment to those on whom society
has passed judgment. Unions fear the artificially low prison wages and
the preferential access to government markets by prison labor employers.
Our results suggest that current prison employment has, and that a near
four-fold increase in prison employment would have, little impact on the
labor market or the overall economy. Paraphrasing Lalonde and Topel
(1991)." .. in short, [prison labor is] rather easily absorbed into
the American labor market."
TABLE 1
Current Prison Employment and MRTS of 1 to 1
Net Increase in Total Employment per Prisoner
Employed
Demand Elasticity
0.31 0.20
Supply 0.30 0.51 0.40
Elasticity 0.20 0.61 0.50
(Job gain per Prison job)
Change in Non-Prison Employment (jobs)
Demand Elasticity
0.31 0.20
Supply 0.30 -42,016 -51,259
Elasticity 0.20 -33,503 -42,716
Wage Change
Demand Elasticity
0.31 0.20
Supply 0.30 -0.85% -1.04%
Elasticity 0.20 -1.02% -1.30%
TABLE 2
Current employment and MRTS of 3 to 1
Net Increase in Employment per Prison Job
Demand Elasticity
0.31 0.20
Supply 0.30 0.84 0.80
Elasticity 0.20 0.87 0.84
(Job gain per Prison job)
Change in Non-Prison Employment (jobs)
Demand Elasticity
0.31 0.20
Supply 0.30 -13,865 -16,916
Elasticity 0.20 -11,056 -14,096
Wage Change Assuming Partial Substitution
Demand Elasticity
0.31 0.20
Supply 0.30 -0.28% -0.34%
Elasticity 0.20 -0.34% -0.43%
TABLE 3
25% Prisoners employed and MRTS of 3 to 1
Net Increase in Employment per Prison Job
Demand Elasticity
0.31 0.20
Supply 0.30 0.84 0.80
Elasticity 0.20 0.87 0.84
(Job gain per Prison job)
Change in Non-Prison Employment (jobs)
Demand Elasticity
0.31 0.20
Supply 0.30 -58,555 -71,437
Elasticity 0.20 -46,691 -59,531
Wage Change Assuming Partial Substitution
Demand Elasticity
0.31 0.20
Supply 0.30 -1.19% -1.45%
Elasticity 0.20 -1.42% -1.81%
Notes
(1.) The Hawes-Cooper Act was intentionally deleted in 1995 in the
rewriting of legislation. Thus, it is no longer applicable and state
legislation in 7 states which refer to its enforcement powers are moot.
(2.) Congress's goal was to limit the amount of profit from
using prison labor by limiting economic profit available.
(3.) Locality is broadly defined. For example, the state of Texas
is one locality; the state of Utah and Utah County have separate
certificates; and counties may have certificates even though the state
does not as in New Hampshire.
(4.) Garvey (1998) argues that PIE is as restrictive as the
Hawes-Cooper and Ashurst-Somners Acts since it replaces one restriction
with another. The PIE restriction is that one must pay the same wage for
work when productivity in the prison will be lower than on the outside.
With lower productivity and comparable wages, Garvey argues that
companies have no incentive to invest in PIE. Thus, he argues for a
return to the contract system and offers ways of overcoming the
challenges of potential abuse, stereotyping, and the principle of less
eligibility in a contract system.
(5.) FPI officials argue that mandatory sourcing--having the right
to first refusal supplying federal needs--is necessary to overcome the
economic disadvantages of low productivity labor and security costs. The
National Performance Review headed by Vice President Gore recommended
the deletion of the mandatory sourcing requirement.
(6.) A normal eight hour shift in Maryland contains approximately
four and a half hours of production. The remaining time is lost to shift
changes by guards and supervisors, counts of prisoners as they move
between prison sections, tool distribution in the morning and after
lunch, and tool collection before lunch and at the end of the day.
(7.) Katz and Krueger (1999) note a major reason for the low
unemployment rate in the late 1990's was the 150% increase in the
number of men in prison since 1985. The number of adult males in prison
equals 2.3 percent of the male labor force. They conclude that
incarceration has lowered the unemployment rate by 2.5% and raised wage
rates.
(8.) Since the measure of number of workers added is the number of
prison jobs, the assumption is that each prison job is occupied by a
prisoner. Free market additions to the labor market leave open whether
the added workers or the current participants in the labor force are
"crowded out."
(9.) This describes what happens in the non-prison labor market.
The probability that the prisoner wage will equal their marginal product
is quite low as prison industries are often limited by space or other
politically-determined restrictions.
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Frederick W. Derrick, Charles E. Scott and Thomas Hutson *
Loyola College in Maryland, Baltimore, MD