How reliable are hospital efficiency estimates? Exploiting the dual to homothetic production
For scientific use, stochastic frontier estimates of hospital efficiency must be robust to plausible departures from the assumptions made by the investigator. Comparisons of alternative study designs, each well within the 'accepted' range according to current practice, generate similar mean inefficiencies but substantially different hospital rankings. The three alternative study contrasts feature (1) pooling vs partitioned estimates, (2) a cost function dual to a homothetic production process vs the translog, and (3) two conceptually valid but empirically different cost-of-capital measures. The results suggest caution regarding the use of frontier methods to rank individual hospitals, a use that seems to be required for reimbursement incentives, but they are robust when generating comparisons of hospital group mean inefficiencies, such as testing models that compare non-profits and for-profits by economic inefficiency. Demonstrations find little or no efficiency differences between these paired groups: non-profit vs for-profit; teaching vs non-teaching; urban vs rural; high percent of Medicare reliant vs low percent; and chain vs independent hospitals. Copyright © 2001 John Wiley & Sons, Ltd.
Volume (Year): 10 (2001)
Issue (Month): 8 ()
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- Nathalie Bosmans & Fabienne Fecher, 1995. "Performance of Belgian hospitals: A frontier approach," Health Economics, John Wiley & Sons, Ltd., vol. 4(5), pages 389-397, 09.
- Carey, Kathleen, 1998. "Stochastic Demand for Hospitals and Optimizing "Excess" Bed Capacity," Journal of Regulatory Economics, Springer, vol. 14(2), pages 165-187, September.
- Hadley, Jack & Zuckerman, Stephen, 1994. "The role of efficiency measurement in hospital rate setting," Journal of Health Economics, Elsevier, vol. 13(3), pages 335-340, October.
- Jondrow, James & Knox Lovell, C. A. & Materov, Ivan S. & Schmidt, Peter, 1982. "On the estimation of technical inefficiency in the stochastic frontier production function model," Journal of Econometrics, Elsevier, vol. 19(2-3), pages 233-238, August.
- Zuckerman, Stephen & Hadley, Jack & Iezzoni, Lisa, 1994. "Measuring hospital efficiency with frontier cost functions," Journal of Health Economics, Elsevier, vol. 13(3), pages 255-280, October.
- Dor, Avi, 1994. "Non-minimum cost functions and the stochastic frontier: On applications to health care providers," Journal of Health Economics, Elsevier, vol. 13(3), pages 329-334, October.
- Tomas Philipson & Darius Lakdawalla, "undated". "Nonprofit Production," University of Chicago - Population Research Center 97-8, Chicago - Population Research Center.
- Grannemann, Thomas W. & Brown, Randall S. & Pauly, Mark V., 1986. "Estimating hospital costs : A multiple-output analysis," Journal of Health Economics, Elsevier, vol. 5(2), pages 107-127, June.
- Kooreman, Peter, 1994. "Data envelopment analysis and parametric frontier estimation: complementary tools," Journal of Health Economics, Elsevier, vol. 13(3), pages 345-346, October.
- Despotakis, Kostas A., 1986. "Economic performance of flexible functional forms: Implications for equilibrium modeling," European Economic Review, Elsevier, vol. 30(6), pages 1107-1143, December.
- Grosskopf, S. & Valdmanis, V., 1987. "Measuring hospital performance : A non-parametric approach," Journal of Health Economics, Elsevier, vol. 6(2), pages 89-107, June.
- Aigner, Dennis & Lovell, C. A. Knox & Schmidt, Peter, 1977. "Formulation and estimation of stochastic frontier production function models," Journal of Econometrics, Elsevier, vol. 6(1), pages 21-37, July.
- Adam Wagstaff & Guillem Lopez, 1996. "Hospital costs in Catalonia: a stochastic frontier analysis," Applied Economics Letters, Taylor & Francis Journals, vol. 3(7), pages 471-474.