Opening Hours and Employment in the Retail Sector: Quasi-Experimental Evidence from Germany Bossler, Mario * Oberfichtner, Michael † Institute for Employment Research University of Erlangen-Nuremberg Preliminary, August 2013. Abstract We study the effect of a deregulation in shop opening hours on employment in food retailing. Our identification relies on changes in restrictions of business hours across German states that allow for a difference-in-differences approach. Using data on the universe of German establishments, we find that lifting restrictions on business hours increases total employment modestly. This effect is driven by an increase in part-time employment while full-time employment is not affected. The statistical significance of these effects hinges on the assumptions on error correlation and we hence report inference robust to clustering at different levels. * Institute for Employment Research, Department Establishments and Employment, Regensburger Str. 104, 90478 Nuremberg, e-mail:
[email protected], phone: +49-911-179-3043. † Friedrich-Alexander University Erlangen-Nuremberg, Department of Economics, Lange Gasse 20, 90403 Nuremberg, e-mail:
[email protected], phone: +49-911-5302-771. For helpful comments and suggestions, we thank Sascha Becker, Thiess Büttner, Boris Hirsch, Robin Naylor, Thorsten Schank, Claus Schnabel, Till von Wachter, Fabian Waldinger, Matthias Wrede, Jeffrey Wooldridge, and Thomas Zwick as well as participants of the 16th BGPE workshop and seminars at the universities of Erlangen-Nuremberg and Warwick. Michael Oberfichtner visited University of Warwick during the work on this article, and he is thankful for their hospitality. Introduction Despite a general trend towards deregulation, restrictions of shop opening hours are still widespread.