问题
单项选择题
Which of the following is not one of the steps in calculating the Consumer Price Index (CPI)（）
A. Adjust the observed prices of goods and services for quality changes and new goods.
B. Select a CPI basket based on the goods and services a typical household purchases.
C. Conduct periodic surveys of goods and services prices.
答案
参考答案：A
解析：
The three stages in calculating the CPI are: (1) Select the CPI basket. (2) Conduct a monthly price survey. (3) Calculate the CPI relative to the base period. The effects of new goods and quality changes lead to biases that cause the CPI to overstate the inflation rate.