Table 19-1 Source: US Census Bureau and Mankiw's Calculations

Multiple Choice

Table 19-1 Source: US Census Bureau and Mankiw's calculations
-Refer to Table 19-1. Economists suspect that the increase in the earnings gap between skilled and unskilled workers is likely due to

A) an increase in the demand for skilled labor relative to the demand for unskilled labor.
B) an increase in international trade.
C) improvements in technology.
D) All of the above are correct.