If smartwatches are considered substitutes for smartphones, the decline in the price of smartphones would, all else equal
A) increase the quantity of smartwatches demanded.
B) decrease the quantity of smartwatches demanded.
C) increase the demand for smartwatches.
D) decrease the demand for smartwatches.
D
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Consider a PPC with automobiles on the vertical axis and cotton on the horizontal axis. The discovery of a new fertilizer that improves crop yield will shift:
a. the vertical intercept up but will not shift the horizontal intercept. b. the horizontal intercept to the right but will not shift the vertical intercept. c. the horizontal intercept to the left and the vertical intercept upward. d. the vertical intercept downward and the horizontal intercept to the right. e. neither the horizontal intercept nor the vertical intercept.
Figure 5-16
Figure 5-16 shows Adam's purchases of bananas and apples when apples cost $5 each and bananas $4 each. The information implies that Adam's income
a.
must be $9.
b.
must be $20.
c.
must be $40.
d.
Adam's income cannot be determined without further information.