摘要:Twenty years ago, bulk commodities
that consisted primarily
of grains and oilseeds
accounted for most agricultural
trade; however, in recent years processed
and semi-processed products
have jointly accounted for twothirds
of total agricultural trade. A
number of forces in both developing
and developed countries are driving
these changes, particularly income
growth. As inflation-adjusted per
capita incomes increased during the
past two decades, more than doubling
in many countries, food purchasing
power among most consumers
also increased. Due to
increased caloric intake and population
growth, imports of grains and
oilseeds by developing countries
have increased, while developed
country imports of these commodities
have remained stagnant.