1. Refereed Journal // 2015

    The Effects of the introduction of Bachelor Degrees on College Enrollment and Drop-out Rates

    We estimate the short-run effects of the introduction of the Bachelor degree system in Germany, a change in degree regulations such that students need less time to earn a first degree, on college enrollment and…

  2. Refereed Journal // 2015

    Should Welfare Administration be Centralized or Decentralized? Evidence from a Policy Experiment

    The 2005 reform of the German welfare system introduced two competing organizational models for welfare administration. In most districts, a centralized organization was established where local welfare agencies…

  3. Refereed Journal // 2014

    R&D cooperation for non-technological innovations

    Past research on the impact of R&D cooperation on firm innovation performance has almost solely focused on technological innovations. This paper investigates the impact of R&D cooperation on non-technological…

  4. Contributions to Edited Volumes and Conference Proceedings // 2014

    Direct Evidence on Learning by Exporting: Customers, Competitors and Technology Leadership

    We examine first direct evidence on the occurrence of learning by exporting, using unique survey data for German innovating firms on the role of (foreign) customers and competitors as sources of ideas and…