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Identification of Network Externalities in Markets for Non-Durables

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  • Michal Grajek

Abstract

This paper introduces a structural econometric model of consumer demand for non-durable goods, which exhibits network externalities. The structural model allows us to identify the parameters, which determine the strength of the externalities in the underlying economic model from the empirical estimation results. The estimates of these parameters can then be employed to test the economic significance of the externalities and the compatibility of networks. The identifying assumption that drives our results is that consumers care about the lagged instead of the current network size. We argue that it does not necessarily bound their rationality. To complete our structural model, we provide an example of functional specification that yields a simple linear stochastic model of demand. Using this functional specification, we identify all structural parameters of the model. In the end, the estimation and the stochastic structure of the resulting econometric model are discussed. ZUSAMMENFASSUNG - ( Identifikation der Netzwerkeffekten in den Märkten für nicht-dauerhafte Güter) Der vorliegende Beitrag stellt ein strukturelles ökonometrisches Modell der Konsumnachfrage für nicht-dauerhafte Güter mit externen Netzwerkeffekten vor. Das strukturelle Modell lässt uns die Parameter von Netzwerkeffekten im zugrunde liegenden ökonomischen Modell empirisch zu identifizieren. Die Schätzer der Strukturparameter könnten für das Testen der Netzwerkkompatibilität und der ökonomischen Signifikanz der Netzwerkeffekte verwendet werden. Für die Identifikation nehmen wir an, dass die Konsumenten die Netzwerksgröße verzögert wahrnehmen. Wir argumentieren, dass diese Annahme nicht notwendigerweise mit irrationalem Verhalten gleichzusetzen ist. Um das strukturelle Modell zu vollständigen, geben wir eine funktionale Spezifikation, aus der ein lineares stochastisches Nachfragemodell folgt. Unter Verwendung dieser Spezifikation sind alle Strukturparameter von dem Modell identifiziert. Zum Schluss diskutieren wir die Schätzung und die stochastische Struktur des sich ergebenden ökonometrischen Modells.

Suggested Citation

  • Michal Grajek, 2002. "Identification of Network Externalities in Markets for Non-Durables," CIG Working Papers FS IV 02-32, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  • Handle: RePEc:wzb:wzebiv:fsiv02-32
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    References listed on IDEAS

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    1. Gandal, Neil & Greenstein, Shane & Salant, David, 1999. "Adoptions and Orphans in the Early Microcomputer Market," Journal of Industrial Economics, Wiley Blackwell, vol. 47(1), pages 87-105, March.
    2. Nicholas Economides, 1997. "The Economics of Networks," Brazilian Electronic Journal of Economics, Department of Economics, Universidade Federal de Pernambuco, vol. 1(0), December.
    3. Dranove, David & Gandal, Neil, 2000. "The DVD vs. DIVX Standard War: Empirical Evidence of Vaporware," Competition Policy Center, Working Paper Series qt4961n0hj, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
    4. Marc Rysman, 2004. "Competition Between Networks: A Study of the Market for Yellow Pages," Review of Economic Studies, Oxford University Press, vol. 71(2), pages 483-512.
    5. Dan Horsky, 1990. "A Diffusion Model Incorporating Product Benefits, Price, Income and Information," Marketing Science, INFORMS, vol. 9(4), pages 342-365.
    6. Cabral, Luis M. B., 1990. "On the adoption of innovations with 'network' externalities," Mathematical Social Sciences, Elsevier, vol. 19(3), pages 299-308, June.
    7. Erik Brynjolfsson & Chris F. Kemerer, 1996. "Network Externalities in Microcomputer Software: An Econometric Analysis of the Spreadsheet Market," Management Science, INFORMS, vol. 42(12), pages 1627-1647, December.
    8. Klemperer, Paul, 1992. "Competition When Consumers Have Switching Costs: An Overview," CEPR Discussion Papers 704, C.E.P.R. Discussion Papers.
    9. Joseph Farrell & Carl Shapiro, 1988. "Dynamic Competition with Switching Costs," RAND Journal of Economics, The RAND Corporation, vol. 19(1), pages 123-137, Spring.
    10. Farrell, Joseph & Klemperer, Paul, 2007. "Coordination and Lock-In: Competition with Switching Costs and Network Effects," Handbook of Industrial Organization, Elsevier.
    11. Michael L. Katz & Carl Shapiro, 1994. "Systems Competition and Network Effects," Journal of Economic Perspectives, American Economic Association, vol. 8(2), pages 93-115, Spring.
    12. Economides, Nicholas & White, Lawrence J., 1994. "Networks and compatibility: Implications for antitrust," European Economic Review, Elsevier, vol. 38(3-4), pages 651-662, April.
    13. S. J. Liebowitz & Stephen E. Margolis, 1994. "Network Externality: An Uncommon Tragedy," Journal of Economic Perspectives, American Economic Association, vol. 8(2), pages 133-150, Spring.
    14. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
    15. Gandal, Neil, 1995. "Competing Compatibility Standards and Network Externalities in the PC Software Market," The Review of Economics and Statistics, MIT Press, vol. 77(4), pages 599-608, November.
    16. H. Leibenstein, 1950. "Bandwagon, Snob, and Veblen Effects in the Theory of Consumers' Demand," The Quarterly Journal of Economics, Oxford University Press, vol. 64(2), pages 183-207.
    17. Blonski, Matthias, 2002. "Network externalities and two-part tariffs in telecommunication markets," Information Economics and Policy, Elsevier, vol. 14(1), pages 95-109, March.
    18. Jain, Dipak C & Rao, Ram C, 1990. "Effect of Price on the Demand for Durables: Modeling, Estimation, and Findings," Journal of Business & Economic Statistics, American Statistical Association, vol. 8(2), pages 163-170, April.
    19. Bresnahan, Timothy F., 1989. "Empirical studies of industries with market power," Handbook of Industrial Organization,in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 2, chapter 17, pages 1011-1057 Elsevier.
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    Cited by:

    1. Michal Grajek, 2003. "Estimating Network Effects and Compatibility in Mobile Telecommunications," CIG Working Papers SP II 2003-26, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
    2. Laura Rinaldi, 2008. "Estimation of network externalities and critical mass in the mobile telephone market: a panel data analysis of the OECD countries," Working Papers 1_2008, D.E.S. (Department of Economic Studies), University of Naples "Parthenope", Italy.
    3. Michal Grajek, 2004. "Diffusion of ISO 9000 Standards and International Trade," CIG Working Papers SP II 2004-16, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
    4. Baraldi, A. Laura, 2008. "Network Externalities and Critical Mass in the Mobile Telephone Network: a Panel Data Estimation," MPRA Paper 13373, University Library of Munich, Germany.

    More about this item

    Keywords

    Structural Econometric Model; Network Externalities; Innovation Diffusion;

    JEL classification:

    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis

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