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System Size, Lock-in and Network Effects for Patient Records

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Abstract

We examine empirically whether the size of a firm using a network affects the scope of its network usage, and consequently network effects and lock-in within the network. We use the example of hospital information exchange. We find that hospitals in larger hospital systems are more likely to exchange electronic patient information only within their system and less likely to exchange patient information externally. We show that hospitals are also more likely to exchange information externally if others hospitals also do so. This implies that the disinclination of large hospital systems to exchange data externally harms overall levels of network use. Our results highlight that makers of technology policy designed to encourage the optimal use of networks should consider regulating the behavior of network users as well as technology vendors.

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File URL: http://www.netinst.org/Miller_Tucker_09-07.pdf
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Bibliographic Info

Paper provided by NET Institute in its series Working Papers with number 09-07.

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Length: 37 pages
Date of creation: Aug 2009
Date of revision: Sep 2009
Handle: RePEc:net:wpaper:0907

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Web page: http://www.NETinst.org/

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Keywords: Technology Diffusion; Health-care IT; Network Externalities; Hospitals;

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  1. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-40, June.
  2. repec:att:wimass:9127 is not listed on IDEAS
  3. Nicholas Economides, 1997. "The Economics of Networks," Industrial Organization 9701002, EconWPA.
  4. Catherine Tucker, 2008. "Identifying Formal and Informal Influence in Technology Adoption with Network Externalities," Management Science, INFORMS, vol. 54(12), pages 2024-2038, December.
  5. Manski, Charles F, 1993. "Identification of Endogenous Social Effects: The Reflection Problem," Review of Economic Studies, Wiley Blackwell, vol. 60(3), pages 531-42, July.
  6. Shy,Oz, 2001. "The Economics of Network Industries," Cambridge Books, Cambridge University Press, number 9780521805001, April.
  7. Gautam Gowrisankaran & Joanna Stavins, 2004. "Network Externalities and Technology Adoption: Lessons from Electronic Payments," RAND Journal of Economics, The RAND Corporation, vol. 35(2), pages 260-276, Summer.
  8. Timothy S. Simcoe & Stuart J.H. Graham & Maryann Feldman, 2007. "Competing on Standards? Entrepreneurship, Intellectual Property and the Platform Paradox," NBER Working Papers 13632, National Bureau of Economic Research, Inc.
  9. Melnick, Glenn & Keeler, Emmett, 2007. "The effects of multi-hospital systems on hospital prices," Journal of Health Economics, Elsevier, vol. 26(2), pages 400-413, March.
  10. Burgess, James Jr. & Carey, Kathleen & Young, Gary J., 2005. "The effect of network arrangements on hospital pricing behavior," Journal of Health Economics, Elsevier, vol. 24(2), pages 391-405, March.
  11. Joseph Farrell & Garth Saloner, 1985. "Standardization, Compatibility, and Innovation," RAND Journal of Economics, The RAND Corporation, vol. 16(1), pages 70-83, Spring.
  12. Angelique Augereau & Shane Greenstein & Marc Rysman, 2006. "Coordination versus differentiation in a standards war: 56K modems," RAND Journal of Economics, RAND Corporation, vol. 37(4), pages 887-909, December.
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