Generally speaking, economists pay

Generally speaking, economists pay more attention to the relationship between stock market and economic growth, but some economists study the relationship between stock price volatility and economic volatility from the perspective of stock market price volatility to find out the reasons of stock price volatility. The cause of the fluctuation. Some western economists believe that the trend of stock price is closely related to the operation of domestic economy. They attribute the fluctuation of stock price to the change of general economic environment, and think that the price fluctuation of stock market is mainly determined by economic variables, such as business cycle, money supply, interest rate, inflation rate and corporate performance. Some empirical studies also support this view: the research results of umstead and Fama show that there is a positive correlation between stock price and real economic growth; iro and Cochrane find that economic fluctuations affect stock price, while macroeconomic variables such as real output and interest rate can well explain the movement of stock market; eveliljeblom and Mariane use VaR method to study the relationship between them The results show that there is a significant correlation between stock market volatility and economic volatility.