Starting from January 1, 2025, the Library has collaborated with the School of Economics to jointly subscribe to several important financial databases on the WRDS platform. Below are detailed introductions and access guidelines for the databases. I. CRSP Database Provided by the Center for Research in Security Prices (CRSP), the subscription includes the following two core databases: (1) CRSP 1925 US Stock Database Content: Covers stock prices and trading data of US-listed companies, including basic market indicators such as prices, trading volumes, and returns for common stocks on the NYSE, AMEX, and NASDAQ. Time Span: Data goes back to 1925 and is updated annually. (2) CRSP Survivor-Bias-Free US Mutual Funds Database Content: Contains comprehensive information on both active and inactive mutual funds, which is an essential foundation for mutual fund research and benchmarking. Time Span: Data goes back to 1960 and is updated quarterly. Database navigation link: https://libdb.zju.edu.cn/s/lib/libtb/show/2064 II. Mutual Fund Holdings Database Provided by Refinitiv (a subsidiary of the London Stock Exchange Group). Content: Covers security holdings information of all registered mutual funds that report to the U.S. Securities and Exchange Commission, as well as 3,000 global funds. Time Span: Data goes back to March 1980 and is updated quarterly. Database navigation link: https://libdb.zju.edu.cn/s/lib/libtb/show/2065 III. MFLINKS Database Provided by Wharton Research Data Services (WRDS). This database serves as a tool to link the CRSP Survivor-Bias-Free US Mutual Funds Database and the Mutual Fund Holdings Database, facilitating cross-database queries and analysis for users. Database navigation link: https://libdb.zju.edu.cn/s/lib/libtb/show/2066 IV. Access Guidelines Access URL: https://wrds-www.wharton.upenn.edu/ Access Method: Both on and off-campus access requires registration using a Zhejiang University email address and obtaining authorized access permissions. Library January 21, 2025

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