Volume 20, Issue 3

In 2015, Germany introduced a statutory hourly minimum wage that was not only universally binding but also set at a relatively high level. We discuss the shortrun effects of this new minimum wage on a wide set of socioeconomic outcomes, such as employment and working hours, earnings and wage inequality, dependent and selfemployment, as well as reservation wages and satisfaction. We also discuss difficulties in the implementation of the minimum wage and the measurement of its effects related to non-compliance and suitability of data sources. Two years after the minimum wage introduction, the following conclusions can be drawn: while hourly wages increased for low-wage earners, some small negative employment effects are also identifiable. The effects on aspired goals, such as poverty and inequality reduction, have not materialised in the short run. Instead, a tendency to reduce working hours is found, which alleviates the desired positive impact on monthly income. Additionally, the level of noncompliance was substantial in the short run, thus drawing attention to problems when implementing such a wide reaching policy.

I discuss the econometrics and the economics of past research on the effects of minimum wages on employment in the United States. My intent is to try to identify key questions raised in the recent literature, and some from the earlier literature, which I think hold the most promise for understanding the conflicting evidence and arriving at a more definitive answer about the employment effects of minimum wages. My secondary goal is to discuss how we can narrow the range of uncertainty about the likely effects of the large minimum wage increases becoming more prevalent in the United States. I discuss some insights from both theory and past evidence that may be informative about the effects of high minimum wages, and try to emphasize what research can be done now and in the near future to provide useful evidence to policymakers on the results of the coming high minimum wage experiment, whether in the United States or in other countries.

In January 2015, Germany introduced a federal, statutory minimum wage of 8.50 € per hour. This study evaluates the effects of this policy on regular and marginal employment and on welfare dependency. Based on the county-level administrative data, this study uses the difference-in-differences technique, exploiting regional variation in the bite of the minimum wage, i.e., the county-specific share of employees paid less than 8.50 € before the introduction of the minimum wage. The minimum wage had a considerable negative effect on marginal employment. There is also some indication that regular employment was slightly reduced. Concerning welfare dependency, the minimum wage reduced the number of working welfare recipients, with some indication that about one half of them left welfare receipt due to the minimum wage.

Using the variation across space, age and sex and the variation across space and sectors, we analyse the relationship between the minimum wage and (un)employment growth in 2015. We use difference-in-differences specifications and instrument the bite of the minimum wage by the lagged bite. The results provide stable evidence that a higher minimum wage bite is related to a higher growth rate of regular employment. We also find stable evidence that a higher minimum wage bite is related to a lower growth rate of marginal employment. These results are consistent with a transformation of marginal to regular jobs. The relationship to total employment is slightly positive in our preferred specification but insignificant or negative in others. For unemployment, we find a positive relationship between the bite of the minimum wage and unemployment growth in our preferred specification but insignificant or negative results in others.