问题
单项选择题
When real interest rates fall as a result of an unexpected expansionary monetary policy of government:（）
A. aggregate demand decreases leading to both an increase in current output and higher prices in the short run.
B. aggregate demand increases leading to both an increase in current output and higher prices in the short run.
C. aggregate demand increases leading to both a decrease in current output and higher prices in the short run.
答案
参考答案：B
解析：
When real interest rates fall as a result of an unexpected expansionary monetary policy of government, aggregate demand increases leading to both an increase in current output and higher prices in the short run.