An Empirical Analysis of Medicare-eligible Veterans' Demand for Outpatient Health Care Services

Kajal Lahiri and Guibo Xing

Discussion Papers from University at Albany, SUNY, Department of Economics

Abstract: Using data from the 1992 US National Survey of Veterans, we analyze Medicare-eligible veterans' use of VA and non-VA outpatient health care services. We apply a utility consistent, combined multinomial choice and count data model to identify factors that affect these veterans' outpatient health care usage and facility choices, with special reference to the effect of out-of-pocket cost, distance to the medical facility, and supplemental private medical insurance coverage. Our first stage count data regression shows that the out-of-pocket cost index calculated from the second stage multinomial choice model is significant in determining the Medicare-eligible veterans' demand of outpatient health care services. The calculated cost index elasticity of outpatient visits is about -0.65. In the second stage, we specify a multinomial choice model to study veterans' allocation of outpatient visits between VA and non-VA health care facilities, and we find that veterans' out-of-pocket cost and the distance to the health care facility have significantly negative effects on the probability of choosing the alternative. A number of other factors including family income, insurance status, means of transportation, home ownership, race, employment, health, disability status and diagnostic conditions were also found to be important at various stages of the decision making. We find no evidence of adverse selection in the market for supplemental private health insurance. The model is used to simulate the impact of alternative copayment policies on the demand for VA outpatient health care services.

Keywords: National Survey of Veterans; Health Care Demand; Two Stage Count Data Model; Nested Logit; Copayments; Shadow Cost; Consumer Surplus; CBOCs (search for similar items in EconPapers)
JEL-codes: C35 I12 I28 (search for similar items in EconPapers)
Date: 2002
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Citations: View citations in EconPapers (1)

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