Event analysis is an empirical research method, which was first used in the financial field to analyze the impact of a specific event on company value with the help of financial market data.
The application field of event analysis is very wide, and different scholars have expounded it from the perspective of this field. Duan Ruiqiang believes that "event research" is a quantitative analysis method to measure the impact of an event by using specific technology according to the statistics before and after the event. There will be all kinds of news, policies, products and other events in the financial market, and the impact of these events will soon be reflected in asset prices. Therefore, "event analysis" is an empirical analysis method widely used in financial market research.