[go: up one dir, main page]

IDEAS home Printed from https://ideas.repec.org/p/hst/hstdps/d06-166.html
   My bibliography  Save this paper

Welfare Analysis Incorporating a Structural Entry-Exit Model: A Case Study of Medicare HMOs

Author

Listed:
  • Shiko Maruyama
Abstract
Should the government subsidize entry to promote competition? In theory, free entry does not guarantee the socially optimum number of entrants. In differentiated product markets, free entry can result either in excessive or insufficient entry. In this paper I propose an empirical framework to address this issue with a case study of the Medicare HMO market for 2003 and 2004. I perform counterfactual welfare simulations with different entry conditions and with different government payment rates to HMOs. The results indicate that uniformly raising the payment rate lowers national welfare, which supports the government's efforts to contain the payment rate in my sample years. A comparison of the cases with and without entry and/or market power indicates that this welfare loss does not come from additional entry, but instead the oligopolistic market structure and market distortion from the payment rate subsidy. The number of entrants is likely to be insufficient.

Suggested Citation

  • Shiko Maruyama, 2006. "Welfare Analysis Incorporating a Structural Entry-Exit Model: A Case Study of Medicare HMOs," Hi-Stat Discussion Paper Series d06-166, Institute of Economic Research, Hitotsubashi University.
  • Handle: RePEc:hst:hstdps:d06-166
    as

    Download full text from publisher

    File URL: http://hi-stat.ier.hit-u.ac.jp/research/discussion/2006/pdf/D06-166.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. repec:mpr:mprres:3849 is not listed on IDEAS
    2. Federico Ciliberto & Elie Tamer, 2009. "Market Structure and Multiple Equilibria in Airline Markets," Econometrica, Econometric Society, vol. 77(6), pages 1791-1828, November.
    3. Nevo, Aviv, 2001. "Measuring Market Power in the Ready-to-Eat Cereal Industry," Econometrica, Econometric Society, vol. 69(2), pages 307-342, March.
    4. Berry, Steven T, 1992. "Estimation of a Model of Entry in the Airline Industry," Econometrica, Econometric Society, vol. 60(4), pages 889-917, July.
    5. David Besanko & David Dranove & Mark Shanley, 2001. "Exploiting a Cost Advantage and Coping with a Cost Disadvantage," Management Science, INFORMS, vol. 47(2), pages 221-235, February.
    6. Steven T. Berry & Joel Waldfogel, 1999. "Free Entry and Social Inefficiency in Radio Broadcasting," RAND Journal of Economics, The RAND Corporation, vol. 30(3), pages 397-420, Autumn.
    7. Town, Robert & Liu, Su, 2003. "The Welfare Impact of Medicare HMOs," RAND Journal of Economics, The RAND Corporation, vol. 34(4), pages 719-736, Winter.
    8. Paul Contoyannis & Andrew M. Jones & Roberto Leon‐Gonzalez, 2004. "Using simulation‐based inference with panel data in health economics," Health Economics, John Wiley & Sons, Ltd., vol. 13(2), pages 101-122, February.
    9. repec:cdl:compol:217 is not listed on IDEAS
    10. Michael J. Mazzeo, 2002. "Product Choice and Oligopoly Market Structure," RAND Journal of Economics, The RAND Corporation, vol. 33(2), pages 221-242, Summer.
    11. Leemore Dafny & David Dranove, 2008. "Do report cards tell consumers anything they don't already know? The case of Medicare HMOs," RAND Journal of Economics, RAND Corporation, vol. 39(3), pages 790-821, September.
    12. Timothy F. Bresnahan & Peter C. Reiss, 1987. "Do Entry Conditions Vary across Markets?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 18(3, Specia), pages 833-882.
    13. Bresnahan, Timothy F. & Reiss, Peter C., 1991. "Empirical models of discrete games," Journal of Econometrics, Elsevier, vol. 48(1-2), pages 57-81.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Shiko Maruyama, 2009. "Estimating Sequential-move Games by a Recursive Conditioning Simulator," Discussion Papers 2009-01, School of Economics, The University of New South Wales.
    2. Abe Dunn, 2009. "Does Competition Among Medicare Advantage Plans Matter?: An Empirical Analysis of the Effects of Local Competition in a Regulated Environment," EAG Discussions Papers 200905, Department of Justice, Antitrust Division.
    3. Lustig, Joshua, 2008. "The Welfare Effects of Adverse Selection in Privatized Medicare," Department of Economics, Working Paper Series qt7n09099j, Department of Economics, Institute for Business and Economic Research, UC Berkeley.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Shiko Maruyama, 2008. "Measuring the Welfare Effect of Entry in Differentiated Product Markets: The Case of Medicare HMOs," Discussion Papers 2008-01, School of Economics, The University of New South Wales.
    2. Nishida, Mitsukuni & Gil, Ricard, 2014. "Regulation, enforcement, and entry: Evidence from the Spanish local TV industry," International Journal of Industrial Organization, Elsevier, vol. 32(C), pages 11-23.
    3. Liran Einav (Stanford University), 2004. "Not All Rivals Look Alike: An Empirical Model for Discrete Games with Asymmetric Rivals," Econometric Society 2004 North American Winter Meetings 626, Econometric Society.
    4. Catherine Schaumans & Frank Verboven, 2008. "Entry and regulation: evidence from health care professions," RAND Journal of Economics, RAND Corporation, vol. 39(4), pages 949-972, December.
    5. Hector Perez-Saiz, 2015. "Building new plants or entering by acquisition? Firm heterogeneity and entry barriers in the U.S. cement industry," RAND Journal of Economics, RAND Corporation, vol. 46(3), pages 625-649, September.
    6. Michaela Draganska & Sanjog Misra & Victor Aguirregabiria & Pat Bajari & Liran Einav & Paul Ellickson & Dan Horsky & Sridhar Narayanan & Yesim Orhun & Peter Reiss & Katja Seim & Vishal Singh & Raphael, 2008. "Discrete choice models of firms’ strategic decisions," Marketing Letters, Springer, vol. 19(3), pages 399-416, December.
    7. Philip G. Gayle & Zijun Luo, 2015. "Choosing between Order-of-Entry Assumptions in Empirical Entry Models: Evidence from Competition between Burger King and McDonald's Restaurant Outlets," Journal of Industrial Economics, Wiley Blackwell, vol. 63(1), pages 129-151, March.
    8. Christian Bontemps & Raquel Menezes Bezerra Sampaio, 2020. "Entry games for the airline industry," Post-Print hal-02137358, HAL.
    9. Sault, Joanne & Tovianen, Otto & Waterson, Michael, 2003. "Learning And Location," Economic Research Papers 269587, University of Warwick - Department of Economics.
    10. Maruyama, Shiko, 2014. "Estimation of finite sequential games," Journal of Econometrics, Elsevier, vol. 178(2), pages 716-726.
    11. An-Hsiang Liu & Ralph Siebert, 2020. "The Competitive Effects of Declining Entry Costs over Time: Evidence from the Static Random Access Memory Market," CESifo Working Paper Series 8552, CESifo.
    12. Bontemps, Christian & Kumar, Rohit, 2020. "A geometric approach to inference in set-identified entry games," Journal of Econometrics, Elsevier, vol. 218(2), pages 373-389.
    13. A. Orhun, 2013. "Spatial differentiation in the supermarket industry: The role of common information," Quantitative Marketing and Economics (QME), Springer, vol. 11(1), pages 3-37, March.
    14. Liu, An-Hsiang & Siebert, Ralph B., 2022. "The competitive effects of declining entry costs over time: Evidence from the static random access memory market," International Journal of Industrial Organization, Elsevier, vol. 80(C).
    15. A. Ronald Gallant & Han Hong & Ahmed Khwaja, 2018. "The Dynamic Spillovers of Entry: An Application to the Generic Drug Industry," Management Science, INFORMS, vol. 64(3), pages 1189-1211, March.
    16. Kyoo il Kim, 2006. "Semiparametric Estimation of Signaling Games," Labor Economics Working Papers 22452, East Asian Bureau of Economic Research.
    17. Levent Kutlu & Robin C. Sickles & Mike G. Tsionas & Emmanuel Mamatzakis, 2022. "Heterogeneous decision-making and market power: an application to Eurozone banks," Empirical Economics, Springer, vol. 63(6), pages 3061-3092, December.
    18. Kline, Brendan & Tamer, Elie, 2012. "Bounds for best response functions in binary games," Journal of Econometrics, Elsevier, vol. 166(1), pages 92-105.
    19. Kathleen Cleeren & Frank Verboven & Marnik G. Dekimpe & Katrijn Gielens, 2010. "Intra- and Interformat Competition Among Discounters and Supermarkets," Marketing Science, INFORMS, vol. 29(3), pages 456-473, 05-06.
    20. Liran Einav, 2010. "Not All Rivals Look Alike: Estimating An Equilibrium Model Of The Release Date Timing Game," Economic Inquiry, Western Economic Association International, vol. 48(2), pages 369-390, April.

    More about this item

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:hst:hstdps:d06-166. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tatsuji Makino (email available below). General contact details of provider: https://edirc.repec.org/data/iehitjp.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.