1. ZEW Discussion Paper Nr. 05-46 // 2005

    Centralizing Tendencies in the Public Sector in Germany

    This paper investigates the long-term trend and the underlying determinants of public sector centralization in Germany from 1871 until today. The institutional and the quantitative review of the German history…

  2. Referierte Fachzeitschrift // 2005

    What's Spurious? What's Real? Measuring the Productivity Impacts of ICT at the Firm Level

    In order to assess the productivity effects of information and communication technologies (ICT), regressions based on cross-sectional firm-level data may yield unreliable results for the commonly employed…