Remember to write a thesis when you graduate, because you are studying management and economics, so you need data. At that time, the teacher gave me two directions, one is case analysis and the other is demonstration. The empirical study is very difficult, which requires logistic regression analysis and factor analysis. Then you have to use a lot of databases to teach yourself these things, which are basically used by graduate students, and then you throw that direction away. Just to be a case analysis type, you have to find something for the case analysis type. You must explain where your data comes from.
Therefore, the case study you choose must solve a problem to find the data, and the data must be official, and the data published by a website is still incomplete. For example, if you want to find a company to go public, the company's financial statements are easier to find, but the price-earnings ratio, especially the price-earnings ratio in the past three to five years, is not easy to find, so you need to use many websites. Because at that time, Sina Finance was used more, and then the national Taian database was used, because some data can be directly exported to facilitate the direct use of those financial indicators, and the accuracy of that data is beyond doubt.
Then I checked some information, and I used the flush F 10, and I used Wande, but Wande was very inconvenient. Later, I didn't use that thing, just used a lot of data, because these data sources are diverse, and some data are incomplete on a website. Later, it was revised several times, and the teacher also said that if there is any problem in this area, you should correct it quickly and then modify the data. Anyway, there are a lot of annoying things, but in the end, I stumbled and finished, because the undergraduate wrote a paper. You can't easily expect him to have too much innovation, but he is compliant in all aspects.