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Is there a market for work group servers? Evaluating market level demand elasticities using micro and macro models


  • Van Reenen, John


This paper contains an empirical analysis demand for “work-group” (or low-end) servers. Servers are at the centre of many US and EU anti-trust debates, including the Hewlett-Packard/Compaq merger and investigations into the activities of Microsoft. One question in these policy decisions is whether a high share of work servers indicates anything about shortrun market power. To investigate price elasticities we use model-level panel data on transaction prices, sales and characteristics of practically every server in the world. We contrast estimates from the traditional “macro” approaches that aggregate across brands and modern “micro” approaches that use brand-level information (including both “distance metric” and logit based approaches). We find that the macro approaches lead to overestimates of consumer price sensitivity. Our preferred micro-based estimates of the market level elasticity of demand for work group servers are around 0.3 to 0.6 (compared to 1 to 1.3 in the macro estimates). Even at the higher range of the estimates, however, we find that demand elasticities are sufficiently low to imply a distinct “anti-trust” market for work group servers and their operating systems. It is unsurprising that firms with large shares of work group servers have come under some antitrust scrutiny.

Suggested Citation

  • Van Reenen, John, 2004. "Is there a market for work group servers? Evaluating market level demand elasticities using micro and macro models," LSE Research Online Documents on Economics 773, London School of Economics and Political Science, LSE Library.
  • Handle: RePEc:ehl:lserod:773

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    References listed on IDEAS

    1. Jerome Foncel & Marc Ivaldi, 2005. "Operating System Prices In The Home Pc Market," Journal of Industrial Economics, Wiley Blackwell, vol. 53(2), pages 265-297, June.
    2. Shane M. Greenstein, 1996. "From Superminis to Supercomputers: Estimating Surplus in the Computing Market," NBER Chapters,in: The Economics of New Goods, pages 329-372 National Bureau of Economic Research, Inc.
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    Cited by:

    1. Martin S. Gaynor & Samuel A. Kleiner & William B. Vogt, 2013. "A Structural Approach to Market Definition With an Application to the Hospital Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 61(2), pages 243-289, June.
    2. Olmo Silva, 2004. "Entrepreneurship: Can the Jack-of-All-Trades Attitude be Aquired?," CEP Discussion Papers dp0665, Centre for Economic Performance, LSE.

    More about this item


    Demand elasticities; network servers; computers; anti-trust;

    JEL classification:

    • L4 - Industrial Organization - - Antitrust Issues and Policies
    • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance


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