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양봉민 ( Bong-min Yang ),김진현 ( Jin-hyun Kim ) 한국보건사회연구원 1986 保健社會硏究 Vol.6 No.2
Korea in the last few years has witnessed a gradual development of private health insurance (PHI) in the health care sector. Though it takes only a small portion of total insurance and is in the beginning stage, much attention has been paid to its development. This study attempts to analyze (ⅰ) how PHI could be launched in Korea and (ⅱ) the long-run impacts of PHI on the tacit price fixing behavior by provider groups. A modified Cournot duopoly model, differentiated product model of duopoly, is used for the analysis. Private health insurance is possible because some of the health care providers agree upon a fixed percentage of fee reduction for certain categories of services. It is interesting to note that fee discount takes place only on the part of lower quality provider groups. In the long-run, however, both lower and higher quality provider groups would join the price reduction process, up until they reach the so-called Nash equilibrium point. Finally, an empirical evidence is presented to support for the price cutting hypothesis.
양봉민 ( Bong-min Yang ),김진현 ( Chin-hyun Kim ) 한국보건사회연구원 1987 保健社會硏究 Vol.7 No.2
Following up the earlier study by Yang and Kim on the effect of price discount on health care market performance, this study sets out to examine further issues being related to the price discount aspect of voluntary health insurance. Two issues are addressed and questioned. First,can the price discriminating hospitals make economic profits even under harsh demand conditions if they accept price discounts with voluntary health insurance? Second, which of the choices would the urban poor and the rural area residents prefer, simple price discount or compulsary health insurance? Using microeconomic theories of price discrimination and of intertemporal choice, we show that (i) hospitals can operate profitably if, through price discount, they could attract new customers who would not seek hospital cares otherwise, and that (ii) the urban poor and the rural families with irregular income streams do indeed prefer price discount with deferred payments to government enforced compulsary health insurance schemes. These findings stand out, in contrast to the general notion that health insurance is beneficial to everyone, and thus, it could be reinforced regardless of the social classes. The implications may well be taken care of for successful implementation of national health insurance schemes.
양봉민(Bong Min Yang),김진현(Jin Hyun Kim),이영희(Young Hee Lee) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.75 No.2
Purpose: There have been few studies carried out on the costs of after-surgery pain therapy in hospitals. This analysis was conducted to estimate the health care costs and to understand aspects of resource utilization for post-operative pain management in South Korea. Methods: The direct health care costs for postoperative pain management were estimated by the type of analgesia and surgery. The claims database of the Health Insurance Review Agency (HIRA) was the main data source for this study. It covered all the reimbursement claims from medical care institutions. The average resource use included the length of stay, the total hospitalization cost, the total analgesia cost and the total pharmacy cost. The total analgesia cost was measured as the mean of all the analgesia subgroups, and this encompassed the procedure costs and drug costs. Results: The average length of stay was 12.0 days per case and the total analgesia cost for surgery averaged 131,555 won (equivalent to US$146.2), which was 4.2% of the total hospitalization cost. The total pharmacy cost on the average was 626,805 won (US$696.5), which was 20.0% of the total hospitalization cost. This study shows that the costs of epidural patient-controlled analgesia were the highest among the 11 analgesia types, with 49.5% of its costs being the material cost. Conclusion: This study provides a variety of information about how the costs and patterns of health resources that are used for post-operative pain management are structured in South Korea. It is the first cost analysis using the database for the entire Korean population. Understanding the patterns of resource use correctly may be an important first step in designing efficient pain therapy for patients.
피부사장균증(皮膚絲狀菌症) 치료(治療)를 위한 경구용(經口用) 항진균제(抗眞菌濟)의 비용(費用)-효과(效果) 분석(分析)
양봉민 ( Bong Min Yang ),노병인 ( Byung In Ro ),이태진 ( Tae Jin Lee ),한오석 ( Oh Suk Hahn ),정현진 ( Hyun Jin Jeong ) 한국보건경제정책학회 2001 보건경제와 정책연구 Vol.7 No.1
Onychomycosis is a relatively common condition, which accounts for more than one thirds of al superficial fungal infections. It`s not merely a cosmetic problem because patients with this disabuse experience physical, psychological, and even social limitations to various degrees. This study conducted a cost-effectiveness analysis from a third-party payer`s perspective, comparing five popular oral therapies for dermatophytosis of toenails: itraconazole-continuous, itraconazole-pulse, terbinafine, fluconazole, and ketoconazole. A dermatologist`s proven analytic decision tree was used in the whole process of estimating costs and effectiveness of each drug. Symptom-free days during a predetermined time span (36months) were the main estimator of effectiveness and a comprehensive meta-analysis of published clinical efficacy data served as the statistical input in calculating them. For determination of the medical practice cost of each comparator, two kinds of costs based on both standard practice guideline(confirmed by an experienced dermatologist) and customary practice pattern(revealed by National Health Insurance claims data of Korea) were considered respectively. As a result, in both cases itraconazole-pulse was found the most cost-effective therapy(on the basis of cost per symptom-free days) in Korea followed by terbinafine. In addition, the difference in cost-effectiveness ratio between itraconazole-pulse and terbinafine was widened even more in the case of customary practice cost being used because of their disparity in prescription and follow-up visit requirements, influenced by doctors` economic incentives.