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CHAPTER 16 • General Equilibrium and Economic Efficiency 621
EX AMPLE 16. 3 TRADING TASKS AND IPOD PRODUCTION
major components. This “unbundling” of production, which allows firms to use different countries’
comparative advantages in different steps of production, has been made possible by better communications technology and a decline in shipping
costs. The United States, for instance, may have
a comparative advantage in the task of product
design. The designs are sent to China, which has
a comparative advantage in the task of assembly.
The assembled product is then shipped back to
the United States, where U.S. companies perform
distribution and retail tasks.
Second, note that most of an iPod’s components are semi-finished products, such as storage
or displays, rather than raw materials, such as
plastic or silicon. To make production more
efficient, specialized firms design and manufacture most parts. Certainly, Apple could have set
up its own factories to make processors, storage,
or displays, but it is more efficient to trade and
make use of the production skills of other firms in
other countries. For instance, Toshiba may have
Most people think of foreign trade as importing or
exporting manufactured products. However, trade
often involves many steps that transform raw materials into finished products. At each of these steps,
intermediate goods are combined with labor or
machines to make part or all of finished products.
For instance, workers might assemble a set of chips
and other components for a computer. Thus, a typical product embodies a sequence of tasks, each of
which can also be traded. Where and how those
tasks are performed is an important part of efficient
production and trade.7