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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
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    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. --

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    Bibliographic Info

    Paper provided by ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research in its series ZEW Discussion Papers with number 02-42.

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    Date of creation: 2002
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    Handle: RePEc:zbw:zewdip:676

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

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    1. Paul Schreyer, 2000. "The Contribution of Information and Communication Technology to Output Growth: A Study of the G7 Countries," OECD Science, Technology and Industry Working Papers 2000/2, OECD Publishing.
    2. Timothy F. Bresnahan & Erik Brynjolfsson & Lorin M. Hitt, 2002. "Information Technology, Workplace Organization, And The Demand For Skilled Labor: Firm-Level Evidence," The Quarterly Journal of Economics, MIT Press, vol. 117(1), pages 339-376, February.
    3. Zwick, Thomas & Wolf, Elke, 2002. "Reassessing the Impact of High Performance Workplaces," ZEW Discussion Papers 02-07, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
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    5. Sandra E. Black & Lisa M. Lynch, 2001. "How To Compete: The Impact Of Workplace Practices And Information Technology On Productivity," The Review of Economics and Statistics, MIT Press, vol. 83(3), pages 434-445, August.
    6. Irene Bertschek & Ulrich Kaiser, 2004. "Productivity Effects of Organizational Change: Microeconometric Evidence," Management Science, INFORMS, vol. 50(3), pages 394-404, March.
    7. Brynjolfsson, Erik & Hitt, Lorin M., 2004. "Computing Productivity: Firm-Level Evidence," Working papers 4210-01, Massachusetts Institute of Technology (MIT), Sloan School of Management.
    8. Erik Brynjolfsson & Lorin Hitt, 1996. "Paradox Lost? Firm-Level Evidence on the Returns to Information Systems Spending," Management Science, INFORMS, vol. 42(4), pages 541-558, April.
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    11. Brynjolfsson, Erik. & Hitt, Lorin M., 1994. "Information technology as a factor of production : the role of differences among firms," Working papers 3715-94. CCSTR ; #173., Massachusetts Institute of Technology (MIT), Sloan School of Management.
    12. Arellano, Manuel & Bond, Stephen, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," Review of Economic Studies, Wiley Blackwell, vol. 58(2), pages 277-97, April.
    13. P. Biscourp & B. Crépon & T. Heckel & N. Riedinger, 2002. "How do firms respond to cheaper computers? Microeconometric evidence for France based on a production function approach," Documents de Travail de la DESE - Working Papers of the DESE g2002-05, Institut National de la Statistique et des Etudes Economiques, DESE.
    14. Kevin J. Stiroh, 2002. "Information Technology and the U.S. Productivity Revival: What Do the Industry Data Say?," American Economic Review, American Economic Association, vol. 92(5), pages 1559-1576, December.
    15. Arellano, Manuel & Bover, Olympia, 1995. "Another look at the instrumental variable estimation of error-components models," Journal of Econometrics, Elsevier, vol. 68(1), pages 29-51, July.
    16. R Blundell & Steven Bond, . "Initial conditions and moment restrictions in dynamic panel data model," Economics Papers W14&104., Economics Group, Nuffield College, University of Oxford.
    17. Bill Lehr & Frank Lichtenberg, 1999. "Information technology and its impact on firm-level productivity: evidence from government and private data sources, 1977-1993," Canadian Journal of Economics, Canadian Economics Association, vol. 32(2), pages 335-362, April.
    18. Jorgenson, D.W. & Stiroh, K., 1994. "Computers abd Growth," Harvard Institute of Economic Research Working Papers 1707, Harvard - Institute of Economic Research.
    19. Frank R. Lichtenberg, 1993. "The Output Contributions of Computer Equipment and Personnel: A Firm- Level Analysis," NBER Working Papers 4540, National Bureau of Economic Research, Inc.
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