Using seminonparametric methods to model hospital cost functions: The multi-product asymptotically ideal model
Tóm tắt
The article develops a multi-product extension of the asymptotically ideal model which has several advantages over traditional cost functions. The AIM cost function has greater flexibility and allows for economic theory to be imposed via parametric restrictions alone. In addition, the AIM cost function is superior to other seminonparametric approaches as it is unlikely to suffer from overfitting problems. The multi-product AIM cost function is estimated using hospital data from 137 VA hospitals.
Tài liệu tham khảo
Barnett, W., and Piyu Yue. (1988). “Semiparametric Estimation of the Asymptotically Ideal Model: The AIM Demand System.” InAdvances in Econometrics, Volume 7. JAI Press Inc.
Barnett, W., J. Geweke, and M. Wolfe. (1991a). “Seminonparametric Bayesian Estimation of Consumer and Factor Demand Models.” InEquilibrium Theory and Applications: Proceedings of the Sixth International Symposium in Economic Theory and Econometrics, W.A. Barnett, B. Cornet, C. d'Aspermont., J. Gabszewicz and A. Mas-Colell, editors. Cambridge University Press.
Barnett, W., J. Geweke, and M. Wolfe. (1991b). “Seminonparametric Bayesian Estimation of the Asymptotically Ideal Production Model”.Journal of Econometrics, 49, 5–50.
Barnett, W., J. Geweke, and Piyu Yue. (1991). “Seminonparametric Bayesian Estimation of the Asymptotically Ideal Model: The AIM Consumer Demand System.” InNonparametric and Semiparametric Methods in Econometrics and Statistics: Proceedings of the Fifth International Symposium in Economic Theory and Statistics, W. Barnett., J. Powell and G. Tauchen, editors. Cambridge University Press.
Baumol, W., J. Panzar, and R. Willig. (1988).Contestable Markets and the Theory of Industry Structure, Harcourt Brace Jovanovich, Inc.
Breyer, F. (1987). “The specification of a Hospital Cost Function: A Comment on the Recent Literature.”Journal of Health Economics, 6, 147–157.
Caves, D., L. Christensen, and M. Trethway (1980). “Flexible Cost Functions for Multiproduct Firms.”Review of Economics and Statistics, 62, 477–481.
Conrad, R. and R. Strauss. (1983). “A Multiple-output Multiple-input Model of the Hospital Industry in North Carolina.”Applied Economics, 15, 341–352.
Cowing, T. and A. Holtmann. (1983). “Multiproduct Short-Run Hospital Cost Functions: Empirical Evidence and Policy Implications from Cross-Section Data.”Southern Economic Journal, 49, 637–653.
Cowing, T., A. Holtmann, and S. Powers (1983). “Hospital Cost Analysis: A Survey and Evaluation of Recent Studies.” InAdvances in Health Economics, Volume 4, JAI Press, Inc.
Eakin, B. and T. Kniesner. (1988). “Estimating a Non-Minimum Cost Function for Hospitals.”Southern Economic Journal, 54, 583–597.
Gallant, A.R. (1981). “On the Bias in Flexible Functional Forms and Essentially Unbiased Form: The Fourier Flexible Form.”Journal of Econometrics, 15, 211–245.
Gallant, A.R. and G. Gollub. (1984). “Imposing Curvature Restrictons on Flexible Functional Forms.”Journal of Econometrics, 26, 295–321.
Garnick, D., H. Luft, J. Robinson, and J. Tetreault. (1987). “Appropriate Measures of Hospital Market Areas.”Health Services Research, 22, 69–89.
Grannemann, T., R. Brown, and M. Pauly. (1986). “Estimating Hospital Costs: A Multiple Output Analysis.”Journal of Health Economics, 5, 107–127.
Geweke, J. (1986). “Exact Inference in the Inequality Constrained Normal Linear Regression, Model.”Journal of Applied Econometrics, 1, 127–142.
Hadley, J. and K. Swartz. (1989). “The Impacts on Hospital Costs Between 1980 and 1984 of Hospital Rate Regulation, competition, and Changes in Health Insurance Coverage.”Inquiry, 26, 35–47.
Henderson, P., D. DeFiore, and T. Stefos. (1990). “Service Availability and Economies of Scope in Nonfederal Short-Term General Hospitals.” manuscript, U.S. Department of Veterans Affairs.
Klastorin, T. and C. Watts. (1982). “A Current Reappraisal of Berry's Hospital Typology.”Medical Care, 20, 441–449.
Koop, G. and Carey, K. (1992). “Uncertain Demand and Hospital Cost Function Estimation.” Boston University, Department of Economics, manuscript.
McFadden, D. (1978). “Cost, Revenue and Profit Functions.” InProduction Economies: A Dual Approach to Theory and Applications, M. Fuss and D. McFadden, editors. North-Holland Press.
Robinson, J. and H. Luft. (1985). “The Impact of Hospital Market Structure on Patient Volume, Average Length of Stay, and the Cost of Care.”Journal of Health Economics, 4, 333–356.
Rudin, W. (1966).Real and Complex Analysis. New York: McGraw-Hill.
Terrell, D., (1992). “Incorporating Regularity Conditions in Flexible Functional Forms.”Econometric Reviews, forthcoming.
Vita, M. (1990). “Exploring Hospital Production Relationships Using Flexible Functional Forms.”Journal of Health Economics, 9, 1–21.
White, S. (1987). “The Effects of Competition on Hospital Costs in Flordia.”Policy Studies Journal, 15, 375–393.