This repository contains the material to reproduce my vignette on "**Using multiple imputation to improve harmonization of repeated cross-national surveys.**" This project was prepared as part of the [Fellowship Freies Wissen](https://wikimedia.de/wiki/BildungWissenschaftKultur/Fellowprogramm) sponsored by Wikimedia Deutschland, the Stifterverband, and the VolkswagenStiftung. The content is under a [CC BY 4.0 license](https://creativecommons.org/licenses/by/4.0/). The vignette was writen in R markdown. Comments are welcome.