Publications of the Research Unit Digital Economy

  1. ZEW Discussion Paper No. 14-129 // 2014

    Susceptibility and Influence in Social Media Word-of-Mouth

    Peer influence through word-of-mouth (WOM) plays an important role in many information systems but identification of causal effects is challenging. We identify causal WOM effects in the empirical setting of game…

  2. ZEW Discussion Paper No. 14-128 // 2014

    Peer Effects in Collaborative Content Generation: The Evidence from German Wikipedia

    On Wikipedia, the largest online encyclopedia, editors who contribute to the same articles and exchange comments on articles’ talk pages work in collaborative manner engaging in communication about their work.…

  3. ZEW Discussion Paper No. 14-127 // 2014

    The Identification of Directed Technical Change Revisited

    Technical change that augments capital and labor input in a non-neutral way plays an important role in explaining the relation between growth and other macroeconomic outcomes. Previous research has shown that…

  4. ZEW Discussion Paper No. 14-117 // 2014

    ICT and Economic Growth – Comparing Developing, Emerging and Developed Countries

    This paper analyzes the impact of information and communication technologies (ICT) on economic growth in developing, emerging and developed countries. It is based on a sample of 59 countries for the period 1995…

  5. ZEW-Branchenreport Informationswirtschaft // 2014

    4. Quartal 2014

    • Optimistische Stimmung setzt sich fort
    • Crowdworking noch weitgehend unbekannt
  6. ZEWnews English edition // 2014

    11/12 - 2014

  7. ZEW Discussion Paper No. 14-101 // 2014

    Reassessing Competition Concerns in Electronic Communications Markets

    Central features of today’s electronic communications markets are complementarities between the different layers of the value chain, substitutability between some applications, network effects in the provision…