Business databases · Mapping databases

Comparing security identifiers for business databases

The problem Researchers frequently need to retrieve data on thousands of companies from several sources and combine the results. Each business database that lists securities (companies, bonds, options, etc.) uses their own identifier code. For example, Datastream uses DS Code, Compustat uses GVKEY. They record the security name (and some kind of ticker symbol), but this is… Continue reading Comparing security identifiers for business databases

Business databases · Mapping databases

How I made Markit CDS play nice with other databases

The problem Markit CDS is a source for credit default swap data for quoted companies, private companies and governments. Academic researchers with access to a resource like this usually need to cross reference the securities’ fundamentals or financial data. The financial data is offered from Markit for additional cost but is already available from a university’s other subscriptions.… Continue reading How I made Markit CDS play nice with other databases