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MLP Crosswalk Data User Guide

The MLP crosswalk files are designed to be used in combination with data extracts created from the IPUMS dissemination system. The basic model we envision is to build extracts for two adjacent census years and merge those data onto the crosswalk to create one linked dataset.

Note that the IPUMS extract system can create linked census files, which will serve many users better than the crosswalks, which require more file manipulation. However, the "link census data" feature is not updated to work with the most recent version of the crosswalks that includes the 1950 census as well as 20 and 30-year links. Instead, you should make conventional extracts that include all cases in the relevant population from each census you wish to link.

In the IPUMS extract system

If you intend to use a pre-existing data extract, ensure that you have the most recent version of the data by referring to the IPUMS USA revision history. Prospective users who are not familiar with the IPUMS data extract system can refer to these written instructions or video tutorials.

On your desktop: General instructions

On your desktop: Stata users

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