International journal of health care finance and economics最新文献

The proportion of large employers offering retiree health insurance in the US has declined by half in the past 20 years. This paper examines the potential implications of this change by estimating the effects of a retiree health insurance (RHI) offer on a comprehensive set of labor, health and health care use outcomes in the near-elderly population. An RHI offer increases the probability of early retirement by 37% for both men and women. While the results suggest that an RHI offer has little, if any, effect on health, there is strong evidence that RHI provides significant protection from high out-of-pocket medical costs. In the top 40% of the out-of-pocket spending distribution, those with an offer of retiree coverage spend 22% less on average. Estimates of the value of RHI of over $4,000 per year suggest that increasing opportunities for the near-elderly to purchase coverage at actuarially-fair prices through the individual market or public programs could significantly increase insurance coverage and reduce financial risk for this age group.

The hospitals selected by or for Medicare beneficiaries might depend on whether the patient is enrolled in a Medicare Advantage (MA) plan. A theoretical model of profit maximization by MA plans takes into account the tradeoffs of consumer preferences for annual premium versus outcomes of care in the hospital and other attributes of the plan. Hospital discharge databases for 13 states in 2006, maintained by the Agency for Healthcare Research and Quality, are the main source of data. Risk-adjusted mortality rates are available for all non-maternity adult patients in each of 15 clinical categories in about 1,500 hospitals. All-adult postoperative safety event rates covering 9 categories of events are calculated for surgical cases in about 900 hospitals. Instrumental variables are used to address potential endogeneity of the choice of a MA plan. The key findings are these: enrollees in MA plans tend to be treated in hospitals with lower resource cost and higher risk-adjusted mortality compared to Fee-for-Service (FFS) enrollees. The risk-adjusted mortality measure is about 1.5 percentage points higher for MA plan enrollees than the overall mean of 4%. However, the rate of safety events in surgical patients favors MA plan enrollees--the rate is 1 percentage point below the average of 3.5%. These discrepant results are noteworthy and are plausibly due to greater discretion by the health plan in approving patients for elective surgery and as well as selecting hospitals for surgical patients. Emergency patients are generally excluded for the safety outcome measures. In addition, the current mortality measures may not adequately represent all surgical patients. Such caveats should be prominently highlighted when presenting comparative data. With that proviso, the study justifies informing Medicare beneficiaries about the mortality and safety outcome measures for hospitals being used by a MA plan compared to hospitals used by FFS enrollees.

This paper analyzes hospital cost shifting using a natural experiment generated by the Balanced Budget Act (BBA) of 1997. I find evidence that urban hospitals were able to shift part of the burden of Medicare payment reduction onto private payers. However, the overall estimated degree of cost shifting is small and varies according to a hospital's share of private patients. At hospitals where Medicare is a small payer relative to private insurers, up to 37% of BBA cuts was transferred to private payers through higher payments. In contrast, hospitals with greater reliance on Medicare were more financially distressed, as these hospitals saw large BBA cuts but were limited in their abilities to cost shift.

Managed care has been the dominant organization of health care coverage in the United States, and seeks to achieve cost control by constraining services. The restrictive practices of managed care organizations have been widely criticized and the role of managed care in constraining health care services may be declining. Physician behavior is also believed to be influenced by the practices of managed care organization. This study examines the evolving nature of managed care and its restrictive effects on the provision of physician services. Physicians can choose whether and to what extent they are involved in managed care, so it is an endogenous decision. We employ instrumental variables method to correct for this endogeneity. Using data from the Community Tracking Study physician surveys from 2000-2001 and 2004-2005, we find that managed care organizations have became relatively less restrictive over time in terms of limiting the provision of physician services, compared to non-managed care organizations. These results suggest that managed care and non-managed care are converging in their effects on the provision of physician services.

The paper investigated differences in the use of hospital care, out-patient care and pharmaceutical care in Piemonte, a region of northern Italy with 4,000,000 inhabitants, taking into account factors of need and supply, for capitation purposes. The study used a geographical design, with the municipalities as statistical units, and was based on integrated data from health and health service information systems, the population census and on the geographical distances among municipalities. Hierarchical regression models were fitted with the utilisation of services as the outcome variable and a set of direct and indirect factors of need and supply indicators as covariates. Higher health service consumption rates were observed for the most disadvantaged employment categories, in addition to the elderly. Distance from hospital was inversely correlated with the hospitalisation rate. A formula for determining capitation can be developed using age and indirect factors of need as weights.

The cost of a six-dose pertussis immunization programs for children and adolescents is investigated in relation to estimators of the price of acellular vaccine, the value of a child's life, levels of vaccination rate and discount rates. We compare the cost of the program maintained over time at 90% with three alternative strategies, each involving a decrease in vaccination coverage. Data from England and Wales, 1966-2005, is used to formalize a delay in occurrence of pertussis cases as a result of a fall in coverage. We first apply the criterion of minimization of the total social cost of pertussis to identify the best cost saving immunization strategy. The results are also discussed in form of the discounted present value of the total social net benefits. We find that the discounted present value of the total social net benefit is maximized when a stable vaccination program at 90% is compared to a gradual decrease in vaccination coverage leading to the lowest vaccination rate. The benefits to society of providing sustained immunization strategy, vaccinating the highest proportion of children and adolescents, are systematically proved on the basis of the second optimisation criterion, independently of the level of estimators applied during economic evaluation for the cost variables.

Health care reforms in several European countries provide health insurers with incentives and tools to become prudent purchasers of health care. The potential success of this strategy crucially depends on insurers' bargaining leverage vis-à-vis health care providers. An important determinant of insurers' bargaining power is the willingness of consumers to consider alternative providers. In this paper we examine to what extent consumers are willing to switch hospitals when they are fully covered for hospital services, which is typical for many European countries. Since prices do not matter to these patients, we estimate time-elasticities to assess hospital substitutability. Using data from a large Dutch health insurer on non-emergency neurosurgical outpatient hospital visits in 2003, we estimate a conditional logit model of patient hospital choice taking both patient heterogeneity and hospital characteristics into account. We use the parameter estimates to simulate the demand effect of an artificial increase in travel time by 10% for every patient, holding all other hospital attributes constant. Overall, the resulting point estimates of hospitals' time-elasticities are fairly high, although variation is substantial (-2.6 to -1.4). Sensitivity tests reveal that these estimates are very robust and differ significantly across individual hospitals. This implies that all hospitals in our study sample have at least one close substitute which is an important precondition for effective hospital competition.

Recent evidence indicates that the relationship between age and health care expenditure is not as straightforward as it appears. In fact, micro-level studies find that time to death, rather than ageing, is possibly the main driver of the escalating health care costs in developed countries. Unfortunately, the evidence at the macro level is less clear and often depends on the specification of the empirical model used. We use an aggregate demand framework to assess whether health expenditure is more likely to be driven by ageing per se or proximity to death. Using panel data from 22 OECD countries from the first half of the 1990s, we find population ageing to be negatively correlated with health expenditure once proximity to death is accounted for. This suggests that the effects of ageing on health expenditure growth might be overstated while the effects of the high costs of medical care at the end of life are potentially underestimated. With respect to the latter, our finding highlights the importance of long-term and hospice care management. An expanded long-term care program may not only improve patient welfare, but also reduce costs of care by reducing the duration of hospital care for terminally ill patients. If expensive medical treatment for patients near the end of life can be controlled for, health expenditure growth resulting from population ageing is unlikely to present a most serious problem.

This paper proposes a novel model of the hospital industry in the United States in which firms in effect choose their ownership type and the regulatory and tax regimes under which they must function. Accordingly, I develop a model in which firms have identical objectives but differ in their ability to benefit from a given ownership form. Changes in the economic environment alter firms' incentives to maintain a given ownership type. This in turn induces firms to modify their capacity and encourages some firms to switch ownership type. One implication of this model is that changes in the economic environment that have occurred since 1960 imply that the optimal size of those firms which choose to be for profit should more closely approximate the optimal size of firms which choose to be nonprofit. Hospital level data indicate that this size convergence has indeed occurred. In 1960, U.S. nonprofit hospitals maintained on average more than three times as many beds per hospital as their for-profit counterparts; following a monotonic decline in relative size, by 2000, the average nonprofit hospital was only 32% larger than the typical for-profit hospital. Declining roles of government hospitals, population growth, suburbanization, and increasing government intervention in the healthcare market help explain the convergence in size. Analysis of data at the state and Metropolitan Statistical Area (MSA) levels is consistent with the principal theoretical predictions.

Using data about births from the perinatal information system (PIS) registered in Montevideo (Uruguay), we estimated the probability of having a Caesarian section delivery, controlled by risk factors and the endogeneity of the choice of hospital. In public hospitals in Montevideo there is a fixed payment system, but in private hospitals this procedure has to be paid for separately. In the former, there is no effect on the doctor's income if he performs a Caesarian, but in the latter there is a positive effect. Empirical evidence shows the probability of a Caesarean section increases with the age of the woman, the presence of eclampsy, pre-eclampsy, previous hypertension, previous Caesarean sections, multiple pregnancies and fetopelvic disproportion, and decreases for multiparous women and women in a public hospital. In fact, the probability of having a Caesarean section in a private institution is almost two times higher than in a public hospital (20% as against 39%). Focusing on women without risk factors, we found that the probability a Caesarian in a public hospital was 11%, but the probability in a private hospital was 25%. We conclude that the remuneration system explains an important part of this difference.