Researchers regularly use administrative micro-data samples to approximate subgroup aggregates from the full population. In this paper, I argue that the most commonly used method to do this is often not optimal. I outline some alternatives and compare their relative performance in selected...

We estimate the effects of the introduction and subsequent increases of a substantial minimum wage in Germany's main construction industry on wage and employment growth rates. Using a regional dataset constructed from individual employment histories, we exploit the spatial dimension and border...

We estimate the effects on wage and employment growth rates of the introduction and subsequent increases of a substantial minimum wage in the main construction industry of Germany. Using a regional dataset constructed from individual employment histories, we exploit the spatial dimension and...

In this paper, we investigate the effects of the introduction of a nationwide minimum wage in Germany on main jobs, secondary jobs and their interaction by exploiting large-scale administrative data and variation in exposure to the minimum wage across jobs. While we find that the national...

Administrative labour market data for Germany do not contain detailed information on working hours. This poses a serious challenge for many empirical research questions. Between 2010 and 2014, however, it is possible to merge a supplementary data source containing information on working hours...