1. Refereed Journal // 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…

  2. Refereed Journal // 2005

    Does Experience Matter? Innovations and the Productivity of ICT in German Services

    In this paper, it is argued that investment in information and communication technologies (ICT) are closely linked to complementary innovations and are most productive in firms with experience from earlier…