How Managed Care Affects Medicaid Utilization: A Synthetic Difference-in-Difference Zero-Inflated Count Model
AbstractWe develop a synthetic difference-in-differences statistical design to apply to experimental data for adult women living in Hennepin County, Minnesota, to estimate the impact of Medicaid managed care on various modes of medical care use.Because the outcomes of interest are utilization counts with many persons using none of a particular mode of care we use count regression models that are adjusted for excessive zeros.We find no reductions in physician visits or hospital inpatient and emergency department care use, but reductions in hospital outpatient care.Simulations designed to judge the economic significance of our results suggest a program effect that is a savings of about ten percent.
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Bibliographic InfoPaper provided by Tilburg University, Center for Economic Research in its series Discussion Paper with number 1996-40.
Date of creation: 1996
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health; statistical methods;
Find related papers by JEL classification:
- I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
- C25 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions
- C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
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- James J. Heckman & Jeffrey A. Smith, 1995. "Assessing the Case for Social Experiments," Journal of Economic Perspectives, American Economic Association, vol. 9(2), pages 85-110, Spring.
- William H. Greene, 1994. "Accounting for Excess Zeros and Sample Selection in Poisson and Negative Binomial Regression Models," Working Papers 94-10, New York University, Leonard N. Stern School of Business, Department of Economics.
- repec:att:wimass:9217 is not listed on IDEAS
- Vuong, Quang H, 1989. "Likelihood Ratio Tests for Model Selection and Non-nested Hypotheses," Econometrica, Econometric Society, vol. 57(2), pages 307-33, March.
- Leibowitz, Arleen & Buchanan, Joan L. & Mann, Joyce, 1992. "A randomized trial to evaluate the effectiveness of a Medicaid HMO," Journal of Health Economics, Elsevier, vol. 11(3), pages 235-257, October.
- James J. Heckman, 1995. "Instrumental Variables: A Cautionary Tale," NBER Technical Working Papers 0185, National Bureau of Economic Research, Inc.
- Gian Luigi Albano & Federico Dini & Roberto Zampino & Marta Fana, 2008. "The Determinants of Suppliers’ Performance in E-Procurement: Evidence from the Italian Government’s E-Procurement Platform," Working Papers 2008.49, Fondazione Eni Enrico Mattei.
- Robert Kaestner & Lisa Dubay & Genevieve Kenney, 2002. "Medicaid Managed Care and Infant Health: A National Evaluation," NBER Working Papers 8936, National Bureau of Economic Research, Inc.
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