1. ZEW Economic Studies Vol. 33 // 2006

    Computers and Productivity - How Firms Make a General Purpose Technology Work

    Information and communication technologies (ICTs) are creating potentials for considerable productivity gains and for higher economic growth. However, ICTs are also posing varied challenges to firms in order to…

  2. Refereed Journal // 2006

    Additionality of Public R&D Grants in a Transition Economy: The Case of Eastern Germany

    This paper examines the input and output additionality of public R&D subsidies in Western and Eastern Germany. We estimate the impact of public R&D grants on firms' R&D and innovation input. Based on the results…

  3. Refereed Journal // 2006

    European Schemes of Social Assistance: An Empirical Analysis of Set-Ups and Distributive Impacts

    This paper analyses the distributive impacts of various statutory and institutional settings of European schemes of social assistance. For this purpose, two sets of classifications of European schemes of social…

  4. ZEW Discussion Paper No. 06-022 // 2006

    Panel Tests for Unit Roots in Hours Worked

    Hours worked is a time series of interest in many empirical investigations of the macroeconomy. Estimates of macro elasticities of labour supply, for example, build on this variable. Other empirical applications…

  5. ZEW-Gründungsreport // 2006

    Jahrgang 6, Nr. 1, Mai 2006

    • Spitzentechnik stagniert weiter
    • Biotechnologie im Ruhrgebiet