Why do patients prefer hospital emergency visits? A nested multinomial logit analysis for patient‐initiated contacts

Health Care Management Science - Tập 1 - Trang 39-52 - 1998
Jaume Puig‐Junoy1, Marc Saez2, Esther Martínez‐García3
1Department of Economics and Business, Research Centre for Health Economics, c/Ramon Trias Fargas, 25‐27, E‐, Universitat Pompeu Fabra, Barcelona, Spain E-mail:
2Department of Economics, and Research Centre for Health Economics at Universitat Pompeu, Universitat de Girona, Fabra, Spain
3Research Centre for Health Economics, c/Ramon Trias Fargas, 25‐27, E‐, Universitat Pompeu Fabra, Department of Economics and Business, Barcelona, Spain E-mail:

Tóm tắt

This paper analyzes the nature of health care provider choice in the case of patient‐initiated contacts, with special reference to a National Health Service setting, where monetary prices are zero and general practitioners act as gatekeepers to publicly financed specialized care. We focus our attention on the factors that may explain the continuously increasing use of hospital emergency visits as opposed to other provider alternatives. An extended version of a discrete choice model of demand for patient‐initiated contacts is presented, allowing for individual and town residence size differences in perceived quality (preferences) between alternative providers and including travel and waiting time as non‐monetary costs. Results of a nested multinomial logit model of provider choice are presented. Individual choice between alternatives considers, in a repeated nested structure, self‐care, primary care, hospital and clinic emergency services. Welfare implications and income effects are analyzed by computing compensating variations, and by simulating the effects of user fees by levels of income. Results indicate that compensating variation per visit is higher than the direct marginal cost of emergency visits, and consequently, emergency visits do not appear as an inefficient alternative even for non‐urgent conditions.

Tài liệu tham khảo

J.P. Acton, Non-monetary factors in the demand for medical services: Some empirical evidence, Journal of Political Economy (1975) 595- 614. S. Birch, J. Eyles and B. Newbold, Equitable access to health care: methodological extensions to the analysis of physician utilization in Canada, Health Economics 2 (1993) 87-101. D. Bolduc, G. Lacroix and C. Muller, The choice of medical providers in rural Bénin: a comparison of discrete choice models, Journal of Health Economics 15 (1996) 477-498. A. Börsch-Supan, On the compatibility of nested logit models with utility maximization, Journal of Econometrics 43 (1990) 373-388. A.C. Cameron, P.K. Trivedi, F. Milne and J. Piggott, A microeconometric model of the demand for health care and health insurance in Australia, Review of Economic Studies 55(1) (1988) 85-106. S.D. Cauley, The time price of medical care, Review of Economics and Statistics 69(1) (1987) 59-66. A.D. Colle and M. Grossman, Determinants of paediatric care utilization, Journal of Human Resources 13 (1978) 115-158. A. Dor, P. Gertler and J. Van der Gaag, Non-price rationing and the choice of medical care providers in rural Cote d'Ivoire, Journal of Health Economics 6 (1987) 291-304. R.P. Ellis, K.D. McInnes and E.H. Stephenson, Inpatient and outpatient health care demand in Cairo, Egypt, Health Economics 3 (1994) 183-200. R. Feldman, M. Finch, B. Dowd and S. Cassou, The demand for employment-based health insurance plans, Journal of Human Resources 24(1) (1989) 115-143. P. Gertler, L. Locay and W. Sanderson, Are user fees regressive? The welfare implications of health care financing proposals in Peru, Journal of Econometrics 36 (1987) 67-88. Y. González, La demanda de seguros sanitarios, Revista de Economía Aplicada, III 8 (1995) 111-142. M. Grossman, On the concept of health capital and the demand for health, Journal of Political Economy 80 (1972) 223-255. J. Hausman and D. McFadden, A specification test for the multinomial logit model, Econometrica 52 (1984) 1219-1240. J.L. Horowitz, Specification tests of nested logit models, Environment and Planning A 19 (1987) 395-402. J. Johnston, Métodos de Econometría (Vicens Vives, Barcelona, 1987). C.L. Kling and C.J. Thomson, The implication of model specification for welfare estimation in nested logit models, American Journal of Agricultural Economics 78 (1996) 103-114. R.H. Koning and G. Ridder, On the compatibility of nested logit models with utility maximization, Journal of Econometrics 63 (1994) 389-396. W.G. Manning, J.P. Newhouse, N. Duan, E.B. Keeler, A. Leibowitz and M.S. Marquis, Health insurance and the demand for medical care: evidence from a randomized experiment, American Economic Review 77(3) (1987) 251-277. D. McFadden, Econometric models of probabilistic choice, in: Structural Analysis of Discrete Data with Econometric Applications, eds. C. Manski and D. McFadden (MIT Press, Cambridge, MA, 1981). E.R. Morey, R.D. Rowe and M. Watson, A repeated nested logit model of Atlantic salmon fishing, American Agricultural Economics 75 (1993) 578-592. G. Mwabu, M. Ainsworth and A. Nyamete, Quality of medical care and choice of medical treatment in Kenya, Journal of Human Resources 28(4) (1993) 838-862. K.F. O'Grady, W.G. Manning, J.P. Newhouse and R.H. Brook, The impact of cost sharing on emergency department use, New England Journal of Medicine 313 (1985) 484-490. W. Pohlmeier and V. Ulrich, An econometric model of the two-part decision-making process in the demand of health care, Journal of Human Resources 30(2) (1995) 339-361. J. Primoff and V. Hamilton, The time and monetary costs of outpatient care for children, American Economic Association, Papers and Proceedings, May 1995. J.V. Selby, B.H. Fireman and B.E. Swain, Effect of a copayment of the emergency department in a Health Maintenance Organization, New England Journal of Medicine 334 (1996) 635-641. M. Trajtenberg, The welfare analysis of product innovations, with an application to computed tomography scanners, Journal of Political Economy 97(2) (1989) 444-479. W.P.M. Van de Ven and J. Van der Gaag, Health as an observable: a MIMIC model of demand for health care, Journal of Health Economics 1 (1982) 157-183. G.J. Wedig, Health status and the demand for health, Journal of Health Economics 7(2) (1988) 151-163. R.M. Williams, The costs of visits to emergency departments, New England Journal of Medicine 334(10) (1996) 642-646.