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

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  • Hempell, Thomas

Abstract

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 production function framework. In this paper, various estimation biases and econometric strategies to overcome their sources are discussed. The effects are illustrated on the basis of a representative set of panel data for German service firms. The application of a suited SYS?GMM estimator yields evidence for significant productivity effects of ICT which are substantially smaller though than those suggested by cross?section or pooled OLS estimates.

Suggested Citation

  • Hempell, Thomas, 2002. "What's Spurious, What's Real? Measuring the Productivity Impacts of ICT at the Firm-Level," ZEW Discussion Papers 02-42, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  • Handle: RePEc:zbw:zewdip:676
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    Cited by:

    1. Hans-Günther Vieweg & Thomas Fuchs & Reinhard Hild & Andreas Kuhlmann & Stefan Lachenmaier & Michael Reinhard & Uwe Christian Täger & Sebastian de Ramon & Jan-Egbert Sturm, 2005. "Stand und Perspektiven der "New Economy" in ausgewählten Mitgliedstaaten der EU aus deutscher Sicht," ifo Beiträge zur Wirtschaftsforschung, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, number 19, April.

    More about this item

    Keywords

    Productivity; Information and Communication Technologies; Production Function Estimation; Panel Data; Services;

    JEL classification:

    • D24 - Microeconomics - - Production and Organizations - - - Production; Cost; Capital; Capital, Total Factor, and Multifactor Productivity; Capacity
    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • C81 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access
    • L80 - Industrial Organization - - Industry Studies: Services - - - General

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