Nothing Special   »   [go: up one dir, main page]
IDEAS home Printed from https://ideas.repec.org/p/rtv/ceisrp/389.html
   My bibliography  Save this paper

Disentangling Adverse Selection, Moral Hazard and Supply Induced Demand: An Empirical Analysis of The Demand For Healthcare Services

Author

Listed:
Abstract
In the healthcare sector, Selection (S), Moral Hazard (MH) and Supply Induced Demand (SID) are three very important phenomena affecting patients' behavior. Despite there exists a vast theoretical and empirical literature on these phenomena, so far, no contribution has been able to approach them jointly. This is mostly due to difficulties in modelling the joint determinants of health service utilization and health insurance choice by means of a tractable structural simultaneous equation model. In this paper, we provide a solution to this problem and estimate a simultaneous four equation structural model with four latent variables, where the first two equations are meant to deal with the adverse selection issue, while the third and fourth equation deal with moral hazard and SID issues. By doing so, our model seeks to identify causal effects while correcting for selection and endogeneity with the observational data we have. A closed form solution for the likelihood function - which guarantees an exact solution - is maximized via FIML, using a large cross-sectional dataset collected by the Italian national institute of statistic (ISTAT). The empirical analysis has confirmed the theoretical predictions of our structural model. In particular, we find evidence of selection in the choice of private insurance and SID, but do not find MH behavior on the patient side. These results are extremely important from a health policy perspective, given the existing international debate on the development of a second pillar in the financing of the healthcare system.

Suggested Citation

  • Vincenzo Atella & Alberto Holly & Alessandro Mistretta, 2016. "Disentangling Adverse Selection, Moral Hazard and Supply Induced Demand: An Empirical Analysis of The Demand For Healthcare Services," CEIS Research Paper 389, Tor Vergata University, CEIS, revised 31 Oct 2018.
    • Handle: RePEc:rtv:ceisrp:389
    as

    Download full text from publisher

    File URL: https://ceistorvergata.it/RePEc/rpaper/RP389.pdf
    File Function: Main text
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Geweke, John, 1989. "Bayesian Inference in Econometric Models Using Monte Carlo Integration," Econometrica, Econometric Society, vol. 57(6), pages 1317-1339, November.
    2. Liran Einav & Amy Finkelstein & Stephen P. Ryan & Paul Schrimpf & Mark R. Cullen, 2013. "Selection on Moral Hazard in Health Insurance," American Economic Review, American Economic Association, vol. 103(1), pages 178-219, February.
    3. Lorenzo Cappellari & Stephen P. Jenkins, 2006. "Calculation of multivariate normal probabilities by simulation, with applications to maximum simulated likelihood estimation," Stata Journal, StataCorp LP, vol. 6(2), pages 156-189, June.
    4. Keane, Michael P, 1994. "A Computationally Practical Simulation Estimator for Panel Data," Econometrica, Econometric Society, vol. 62(1), pages 95-116, January.
    5. Christopher J. Cronin, 2019. "Insurance‐Induced Moral Hazard: A Dynamic Model Of Within‐Year Medical Care Decision Making Under Uncertainty," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 60(1), pages 187-218, February.
    6. Robert G. Evans, 1974. "Supplier-Induced Demand: Some Empirical Evidence and Implications," International Economic Association Series, in: Mark Perlman (ed.), The Economics of Health and Medical Care, chapter 10, pages 162-173, Palgrave Macmillan.
    7. Holly, Alberto & Gardiol, Lucien & Domenighetti, Gianfranco & Brigitte Bisig, 1998. "An econometric model of health care utilization and health insurance in Switzerland," European Economic Review, Elsevier, vol. 42(3-5), pages 513-522, May.
    8. Dardanoni, Valentino & Li Donni, Paolo, 2012. "Incentive and selection effects of Medigap insurance on inpatient care," Journal of Health Economics, Elsevier, vol. 31(3), pages 457-470.
    9. Atella, Vincenzo & Deb, Partha, 2008. "Are primary care physicians, public and private sector specialists substitutes or complements? Evidence from a simultaneous equations model for count data," Journal of Health Economics, Elsevier, vol. 27(3), pages 770-785, May.
    10. Vincenzo Atella & Francesco Brindisi & Partha Deb & Furio C. Rosati, 2004. "Determinants of access to physician services in Italy: a latent class seemingly unrelated probit approach," Health Economics, John Wiley & Sons, Ltd., vol. 13(7), pages 657-668, July.
    11. Lucien Gardiol & Pierre-Yves Geoffard & Chantal Grandchamp, 2005. "Separating selection and incentive effects in health insurance," PSE Working Papers halshs-00590713, HAL.
    12. Cardon, James H & Hendel, Igal, 2001. "Asymmetric Information in Health Insurance: Evidence from the National Medical Expenditure Survey," RAND Journal of Economics, The RAND Corporation, vol. 32(3), pages 408-427, Autumn.
    13. Keane, Michael & Stavrunova, Olena, 2016. "Adverse selection, moral hazard and the demand for Medigap insurance," Journal of Econometrics, Elsevier, vol. 190(1), pages 62-78.
    14. Train,Kenneth E., 2009. "Discrete Choice Methods with Simulation," Cambridge Books, Cambridge University Press, number 9780521766555, September.
    15. Chiappori, Pierre-Andre & Durand, Franck & Geoffard, Pierre-Yves, 1998. "Moral hazard and the demand for physician services: First lessons from a French natural experiment," European Economic Review, Elsevier, vol. 42(3-5), pages 499-511, May.
    16. Powell, David & Goldman, Dana, 2021. "Disentangling moral hazard and adverse selection in private health insurance," Journal of Econometrics, Elsevier, vol. 222(1), pages 141-160.
    17. Thomas C. Buchmueller & Agnès Couffinhal & Michel Grignon & Marc Perronnin, 2004. "Access to physician services: does supplemental insurance matter? Evidence from France," Health Economics, John Wiley & Sons, Ltd., vol. 13(7), pages 669-687, July.
    18. A. C. Cameron & P. K. Trivedi & Frank Milne & J. Piggott, 1988. "A Microeconometric Model of the Demand for Health Care and Health Insurance in Australia," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 55(1), pages 85-106.
    19. Manning, Willard G, et al, 1987. "Health Insurance and the Demand for Medical Care: Evidence from a Randomized Experiment," American Economic Review, American Economic Association, vol. 77(3), pages 251-277, June.
    20. Amy Finkelstein & James Poterba, 2004. "Adverse Selection in Insurance Markets: Policyholder Evidence from the U.K. Annuity Market," Journal of Political Economy, University of Chicago Press, vol. 112(1), pages 183-208, February.
    21. Keane, Michael & Stavrunova, Olena, 2016. "Adverse selection, moral hazard and the demand for Medigap insurance," Journal of Econometrics, Elsevier, vol. 190(1), pages 62-78.
    Full references (including those not matched with items on IDEAS)

    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. Dardanoni, Valentino & Li Donni, Paolo, 2012. "Incentive and selection effects of Medigap insurance on inpatient care," Journal of Health Economics, Elsevier, vol. 31(3), pages 457-470.
    2. Powell, David & Goldman, Dana, 2021. "Disentangling moral hazard and adverse selection in private health insurance," Journal of Econometrics, Elsevier, vol. 222(1), pages 141-160.
    3. Sengupta, Reshmi & Rooj, Debasis, 2019. "The effect of health insurance on hospitalization: Identification of adverse selection, moral hazard and the vulnerable population in the Indian healthcare market," World Development, Elsevier, vol. 122(C), pages 110-129.
    4. Astrid Kiil, 2012. "Does employment-based private health insurance increase the use of covered health care services? A matching estimator approach," International Journal of Health Economics and Management, Springer, vol. 12(1), pages 1-38, March.
    5. Astrid Kiil & Jacob Nielsen Arendt, 2017. "The effect of complementary private health insurance on the use of health care services," International Journal of Health Economics and Management, Springer, vol. 17(1), pages 1-27, March.
    6. Omar Paccagnella & Vincenzo Rebba & Guglielmo Weber, 2013. "VOLUNTARY PRIVATE HEALTH INSURANCE AMONG THE OVER 50s IN EUROPE," Health Economics, John Wiley & Sons, Ltd., vol. 22(3), pages 289-315, March.
    7. Trottmann, Maria & Zweifel, Peter & Beck, Konstantin, 2012. "Supply-side and demand-side cost sharing in deregulated social health insurance: Which is more effective?," Journal of Health Economics, Elsevier, vol. 31(1), pages 231-242.
    8. Daniele Fabbri & Chiara Monfardini, 2016. "Opt Out or Top Up? Voluntary Health Care Insurance and the Public vs. Private Substitution," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 78(1), pages 75-93, February.
    9. Pierre-Yves Geoffard, 2012. "Incentive and Selection Effects in Health Insurance," Chapters, in: Andrew M. Jones (ed.), The Elgar Companion to Health Economics, Second Edition, chapter 10, Edward Elgar Publishing.
    10. Lucien Gardiol & Pierre-Yves Geoffard & Chantal Grandchamp, 2005. "Separating selection and incentive effects in health insurance," PSE Working Papers halshs-00590713, HAL.
    11. Pierre-André Chiappori & Bernard Salanié, 2002. "Testing Contract Theory : A Survey of Some Recent Work," Working Papers 2002-11, Center for Research in Economics and Statistics.
    12. Andrey Aistov & Ekaterina Aleksandrova & Christopher J. Gerry, 2021. "Voluntary private health insurance, health-related behaviours and health outcomes: evidence from Russia," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 22(2), pages 281-309, March.
    13. Alma Cohen & Peter Siegelman, 2010. "Testing for Adverse Selection in Insurance Markets," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 77(1), pages 39-84, March.
    14. Barros, Pedro Pita & Machado, Matilde P. & Sanz-de-Galdeano, Anna, 2008. "Moral hazard and the demand for health services: A matching estimator approach," Journal of Health Economics, Elsevier, vol. 27(4), pages 1006-1025, July.
    15. Yan Zheng & Tomislav Vukina & Xiaoyong Zheng, 2019. "Estimating asymmetric information effects in health care with uninsurable costs," International Journal of Health Economics and Management, Springer, vol. 19(1), pages 79-98, March.
    16. Preety Srivastava & Gang Chen & Anthony Harris, 2017. "Oral Health, Dental Insurance and Dental Service use in Australia," Health Economics, John Wiley & Sons, Ltd., vol. 26(1), pages 35-53, January.
    17. Zheng, Yan & Vukina, Tomislav & Zheng, Xiaoyong, 2016. "Estimating Asymmetric Information Effects in Health Care Accounting for the Transactions Costs," ARE Working Papers 262941, North Carolina State University, Department of Agricultural and Resource Economics.
    18. Aida Isabel Tavares & Inês Marques, 2021. "Multi-layer health insurance coverage, medical services use and health in a Universal National Health System, the case of Portugal," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 22(1), pages 141-153, February.
    19. Raj Chetty & Amy Finkelstein, 2012. "Social Insurance: Connecting Theory to Data," NBER Working Papers 18433, National Bureau of Economic Research, Inc.
    20. Keane, Michael & Stavrunova, Olena, 2016. "Adverse selection, moral hazard and the demand for Medigap insurance," Journal of Econometrics, Elsevier, vol. 190(1), pages 62-78.

    More about this item

    Keywords

    Quadrivariate probit; FIML; Supply induced demand; Moral hazard; Adverse selection; Health insurance.;
    All these keywords.

    JEL classification:

    • I13 - Health, Education, and Welfare - - Health - - - Health Insurance, Public and Private
    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • C35 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions

    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:rtv:ceisrp:389. 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: Barbara Piazzi (email available below). General contact details of provider: https://edirc.repec.org/data/csrotit.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.