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On July 27, the Federal Reserve announced that it would raise the benchmark interest rate by 75 basis points to the range of 2.25%-2.50%, which is 75 basis points for two consecutive interest rate hikes. The interest rate returned to a high level in 2019, which is near the peak of interest rates. However, the Fed’s rate hike is not over, and the market expects another wave of rate hikes in September. The impact of interest rate hikes has been significant in many areas, including the stock markets in China. This paper is based on Stata to analyze data, selecting the stock indexes in China (Shanghai Composite Index, Shenzhen Component Index) and the U.S. (Nasdaq Index, S&P 500 Index) and intercepting their yields after June 2021. The VAR model and ARMA-GARCH model are used to analyze the data, studying how the Chinese and U.S. stock indexes have been affected by the U.S. monetary policy, and making suggestions for the future development of the Chinese stock market based on data analysis.

After the Centers for Disease Control and Prevention identified the first coronavirus case in the United States on 21st January 2020, the epidemic has rapidly expanded to a global scale, and economic markets in the United States and even the world have been severely affected. The impact has been significant in many areas, including the movie industry. This paper selects the film industry index calculated by East Money Information Co, intercepts the stock data after the pandemic outbreak, and uses the ARMA-GARCH model to model and analyze the data to study how the Chinese movie industry has been affected by the wild spread of the pandemic. Then, it predicts the future development of the Chinese movie industry and makes suggestions for future development of the Chinese movie industry. It is found that the Chinese film industry profitability is affected by the epidemic domestically, and suggests that the Chinese government should actively respond to the increase of the domestic daily new confirmed coronavirus cases and be more proactive in improving the movie industry by opening more movie theaters and reducing policy restrictions on opening cinemas.