问题
单项选择题
Which of the following statements regarding inflation is most accurate（）
A. The purchasing power of money increases as a result of inflation.
B. Inflation has no effect on the real economic output.
C. Inflation is a persistent increase in the general price level of goods and services.
答案
参考答案：C
解析：
Inflation is defined as a persistent increase in the price level over time. Inflation indicates that there has been a general decline in the purchasing power of a currency. Inflation reduces economic output by increasing transactions costs and reducing investment rates. Fixed-rate borrowers gain at the expense of lenders when inflation is greater than expected.