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Hospital-insurer bargaining: an empirical investigation of appendectomy pricing.

Employers' increased sensitivity to health care costs has forced insurers to seek ways to lower costs through effective bargaining with providers. What factors determine the prices negotiated between hospitals and insurers? The hospital-insurer interaction is captured in the context of a bargaining model, in which the gains from bargaining are explicitly defined. Appendectomy was chosen because it is a well-defined procedure with little clinical variation. Our results show that certain hospital institutional arrangements (e.g. hospital affiliations), HMO penetration, and greater hospital concentration improve hospitals' bargaining position. Furthermore, hospitals' bargaining effectiveness has diminished over time and varies across states.

Appendectomy↗

Altruism or moral hazard: the impact of hospital uncompensated care pools.

Empirical evidence from New Jersey supports theories of hospitals altruism. From 1987 to 1992, New Jersey reimbursed hospitals for uncompensated care through the Uncompensated Care Trust Fund. The Trust Fund reduced the shadow price of charity care, inducing hospitals to increase their provision of uncompensated care. Hospitals increased inpatient uncompensated care by an average of 14.8% and statewide uncompensated care increased by $360 million during 1987-1990. Empirical evidence suggests that the state effectively addressed the moral hazard problem created by the Trust Fund by auditing uncompensated care and regulating hospital collection procedures.

Altruism↗

Progressivity, horizontal equity and reranking in health care finance: a decomposition analysis for The Netherlands.

This paper employs the method of Aronson et al. (1994) to decompose the redistributive effect of the Dutch health care financing system into three components: a progressivity component, a classical horizontal equity component and a reranking component. Results are presented for the health care financing system as a whole, as well as for its constituent parts. A final section sets out to uncover the relative importance (in terms of their effects on progressivity, horizontal equity and reranking) of the key institutional features of one component of the Dutch system-the AWBZ social insurance scheme.

European Union↗

Adverse selection and the purchase of Medigap insurance by the elderly.

This study uses data on 8561 elderly respondents from the 1991 Medicare Current Beneficiary Survey to examine adverse selection in the supplemental private insurance market. Logit models of supplemental insurance choices provided modest but mixed evidence of self-selection on the basis of observable health status. Wealth had a strong influence on coverage. Two part models of Medicare utilization and expenditures showed that beneficiaries with individually purchased policies had higher total, part B and physician expenditures than those with employer-provided policies, even after controlling for observable differences, suggesting adverse selection. Results were similar for basic and more comprehensive policies.

Aged↗

Economies of scale in non-revenue producing cost centers: implications for hospital mergers.

This paper uses semiparametric methods to estimate the magnitude of economies of scale in 14 non-revenue producing cost centers in hospitals. There are substantial economies of scale in small hospitals, but economies are exhausted in hospitals with over 10,000 discharges annually. In recent hospital mergers challenged by federal antitrust agencies, one or both hospitals had over 10,000 discharges, suggesting that efficiency gains in non-revenue producing cost centers will be small, and could easily be offset by nominal price increases.

Antitrust Laws↗

Price regulation of pharmaceuticals in Canada.

Patent holding pharmaceutical firms are modeled as price-discriminating international monopolies. In an unregulated world market, firms set monopoly prices in each national market. Three types of regulatory rules: (i) 'reasonable' relationship rule, (ii) international price comparison rule, and, (iii) therapeutic class comparison rule, are examined. While price regulation may lead to lower introductory prices for new drugs, the price of existing drugs may increase. Domestic price regulation may increase foreign prices. Canadian data supported the model's predictions. Policy makers should anticipate these responses that affects the entire vector of drug prices and not just those subject to specific regulations.

Canada↗

Stochastic technology, production organization and costs.

Using a model including patients, physicians, insurers and uncertain diagnostic technology, the optimal cesarean rate is derived from preferences, technology and the incidence rate, when the choice of insured patients is constrained only by technology. Uncertain diagnosis produces unnecessary cesareans and unsafe vaginal births. Technical progress can lead to more cesareans and higher costs. Joint production of goods and bads and collective payments require incentive compatible pricing schemes, different from RBRVS. Equilibrium outcomes of HMOs and free-for-service organizations are identical. However, implementable incentive schemes involve additional costs. Efficiency requires insurers, and not providers, to be liable for malpractice claims.

Adult↗

The demand for health with uncertainty and insurance.

This paper develops Michael Grossman's demand-for-health model by letting the depreciation rate depend upon the level of health, by letting the incidence and size of illness be uncertain and by investigating how the individual's demand for health would be affected by the introduction of insurance. Beside the more theoretical results, there are also some results with important policy implications. When formulating the hypothetical scenario in willingness to pay (WTP) studies it is important whether the individual believes that the level of health is uncertain or not. The existence of insurance could also affect the stated WTP amount. Taking this into account could therefore explain some of the differences in the WTP for seemingly identical health care programs in different countries or different areas in the same country.

Attitude to Health↗

The measurement of individual utility and social welfare.

It has been suggested by a number of economists that decisions about how to allocate scarce health care resources should be informed by the cost per quality-adjusted life-years (QALYs) of the different alternatives. One of the criticisms of the QALY approach is that it is based on the measurement of individual utility; yet the values elicited are used to inform social choice. In this respect, it is argued that the QALY approach fails to take account of distributional issues that are known to be important in the context of health care. This paper addresses this issue and presents an approach grounded in microeconomic theory that is flexible enough to deal with a wide range of efficiency-equity trade-offs, while making the nature of the trade-off transparent. In addition, it is an approach that is relatively simple to investigate empirically, and the results of a preliminary study are presented as illustration of this.

Budgets↗

Why did the SSI-disabled program grow so much? Disentangling the effect of Medicaid.

The number of participants in the SSI program grew by 1.1 million from 1987 to 1993. This paper examines the role of Medicaid on the SSI participation decision. I use the rapid growth in average Medicaid expenditure as a proxy for its value. OLS estimates of Medicaid's effect may be biased because of omitted variables bias and measurement error. I therefore apply two-stage least squares to estimate Medicaid's effect, using average Medicaid expenditure for blind SSI recipients as an instrument. These estimates show that rising Medicaid expenditure significantly increased SSI participation among adults with low permanent incomes, explaining 20% of the growth.

Adolescent↗

Alternative approaches to valuing intangible health losses: the evidence for multiple sclerosis.

This study uses both risk-risk and risk-dollar approaches to assess intangible health losses associated with multiple sclerosis (MS). Using an estimation approach that adjusts for potential perceptional biases that may effect the expressed risk tradeoffs, we estimated parameters of the utility function of persons with and without MS as well as the degree of subjects" overestimation of the probability of obtaining MS. The sample included subjects from the general population and persons with MS. We found that marginal utility of income is lower in the state with MS than without it. However, the difference in marginal in two states was greater for persons without MS than for those with the disease. Persons with MS overestimated the probability of acquiring MS to a greater extent than did persons within MS. Correcting for overestimation of this probability, the value of intangible loss of a statistical case of MS derived from responses of the general population was US$350,000 to US$500.000. Persons with MS were willing to pay somewhat more than this (D80,118,J17).

Attitude to Health↗

Phobic disorder, psychotherapy, and risk-taking: an economic perspective.

Phobic disorders are receiving much attention in psychiatric practice today. Agoraphobia, the most common of the phobic disorders, involves the risk of experiencing a panic attack in public places, thus discouraging the worker from fully participating in the labor market. This paper applies the economic tools of rational choice under uncertainty to the analysis of agoraphobia, with the purpose of gaining more insight as regards the extent of deviation from normal work behavior (which presumably responds to incentives) and the effectiveness of psychotherapy in treating work-avoidance, challenging the popular claim that the cost of psychotherapy helps ensure its success.

Absenteeism↗

The effect of uncertainty on the demand for medical care, health capital and wealth.

We analyze the effect of the uncertainty of the incidence of illness on the demand for medical care and on the accumulation of health capital and wealth over the retirement years. We use a simplified version of a dynamic Grossman household production model to characterize patterns of an individual's precautionary behavior. Elderly individuals respond to uncertainty by smoothing their expected utility over time by making specific patterns of purchases of medical care and consumption. We examine these patterns for individuals with different degrees of risk aversion.

Aged↗

A model of the impact of reimbursement schemes on health plan choice.

Flat capitation (uniform prospective payments) makes enrolling healthy enrollees profitable to health plans. Plans with relatively generous benefits may attract the sick and fail through a premium spiral. We simulate a model of idealized managed competition to explore the effect on market performance of alternatives to flat capitation such as severity-adjusted capitation and reduced supply-side cost-sharing. In our model flat capitation causes severe market problems. Severity adjustment and to a lesser extent reduced supply-side cost-sharing improve market performance, but outcomes are efficient only in cases in which people bear the marginal costs of their choices.

Capitation Fee↗

Physician opportunity costs in physician practice cost functions.

Estimation of cost functions for physician firms is problematic because many physicians are self-employed, and the marginal opportunity cost of physician labor is not observed. In this paper, we show how to recover marginal costs and conventional measures of economies of scale from cost functions that condition on the amount of physician labor input. In addition, we introduce the new concepts of marginal nonphysician input costs and 'behavioral' economies of scale, which reflect the structure of costs when physician labor input moves along a utility-maximizing expansion path. Our results could be useful in the design of resource-based physician fee schedules.

Cost Allocation↗

Agency in health care. Examining patients' preferences for attributes of the doctor-patient relationship.

Recently, some health economists have re-examined the nature of the agency relationship in health care. This paper presents a study conducted to establish the relative value to patients of various attributes of the general practice consultation. In the sample of patients recruited, the most important attribute was 'being able to talk to the doctor', whilst 'who chooses your treatment' was the least important. Although patients preferred more information to less, only females and highly qualified respondents preferred to choose the treatment themselves. The results of this study have implications for the education of doctors in communication skills and for further research into the agency relationship in health care.

Adult↗