问题
单项选择题
The term "automatic stabilizers" refers to the fact that:（）
A. legislators automatically change the tax structure and expenditure programs to correct upswings and downswings in business activity.
B. with given tax rates and expenditure policies, a rise in national income tends to produce a surplus, while a decline tends to result in a deficit.
C. government expenditures and tax receipts automatically balance over the course of the business cycle, although they may be out of balance in any single year.
答案
参考答案：B
解析：
Automatic stabilizers are built-in fiscal devices that ensure deficits in a recession and surpluses during booms. Automatic stabilizers minimize the problem of proper timing.