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

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  • John Van Reenen

Abstract

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.

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File URL: http://eprints.lse.ac.uk/773/
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Bibliographic Info

Paper provided by London School of Economics and Political Science, LSE Library in its series LSE Research Online Documents on Economics with number 773.

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Length: 64 pages
Date of creation: Sep 2004
Date of revision:
Handle: RePEc:ehl:lserod:773

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

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  1. 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.
  2. 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, 06.
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Cited by:
  1. Martin Gaynor & Samuel A. Kleiner & William B. Vogt, 2011. "A Structural Approach to Market Definition With an Application to the Hospital Industry," NBER Working Papers 16656, National Bureau of Economic Research, Inc.
  2. Olmo Silva, 2004. "Entrepreneurship: Can the Jack-of-All-Trades Attitude be Aquired?," CEP Discussion Papers dp0665, Centre for Economic Performance, LSE.

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