consumer price index的意思|示意

Consumer Price Index (CPI) is an index used to measure the price level of a variety of goods and services purchased by consumers in a particular region. It is widely used by governments and economists to measure the rate of inflation in a country. By comparing the CPI of different times, one can tell how much prices have gone up or down over a period of time.

The CPI is calculated by taking a fixed basket of goods and services that are bought by consumers and then comparing the price of this basket from one period of time to the next. The changes in the basket prices can be used to measure the rate of inflation in a country. The basket usually contains items such as food, clothing, fuel, housing, transportation, and various other items. The change in the overall basket price is then used to evaluate how the overall prices of items in the basket have changed.

The CPI is important because it is used to measure economic wellbeing. It helps economists and policy makers to understand the economic health of a country since it captures the changes in the general prices of goods and services. It also helps to inform policy makers of the best approach to managing the economy since it can provide a window into the changing economic environment. For example, if the CPI goes up, then it could mean that the average person is paying more for the same set of goods and services, which could lead to an increase in taxes or cuts in social service programs. Therefore, understanding the CPI can help to make better economic decisions.