download_data_wrds_ccm_links: Download CCM Links from WRDS

In tidyfinance: Tidy Finance Helper Functions

Download CCM Links from WRDS

Description

This function downloads data from the WRDS CRSP/Compustat Merged (CCM) links database. It allows users to specify the type of links (linktype) and the primacy of the link (linkprim).

Usage

download_data_wrds_ccm_links(linktype = c("LU", "LC"), linkprim = c("P", "C"))

Arguments

linktype	A character vector indicating the type of link to download. The default is c("LU", "LC"), where "LU" stands for "Link Up" and "LC" for "Link CRSP".
linkprim	A character vector indicating the primacy of the link. Default is c("P", "C"), where "P" indicates primary and "C" indicates conditional links.

Value

A data frame with the columns permno, gvkey, linkdt, and linkenddt, where linkenddt is the end date of the link, and missing end dates are replaced with today's date.

Examples

  ccm_links <- download_data_wrds_ccm_links(linktype = "LU", linkprim = "P")

tidyfinance documentation built on April 3, 2025, 6:10 p.m.