问题
单项选择题
When incomes in foreign countries increase, aggregate demand in the U.S. is likely to:（）
A. Increase because foreign consumers will tend to buy more U.S. export goods.
B. Decrease because U.s. interest rates will tend to increase.
C. Increase because U.S. interest rates will tend to decrease.
答案
参考答案：A
解析：
When incomes in foreign countries increase, it is unlikely to have a direct effect on interest rates in the U.S. However, increased foreign income is likely to result in greater foreign purchases of U.S. exports. Thus, aggregate demand in the U.S. is likely to increase.