In 1971, a bank worker could process 265 checks in 1 hour. Currently, computers with built-in reader-sorter processing capacity have pushed that number above 100,000 checks per hour. Economists describe this type of activity as
A. the exploitation of labor.
B. an increase in labor productivity.
C. the displacement of labor.
D. the effects of comparative advantage.
E. the mutual gains received through voluntary trade.
Answer: B
Economics
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