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이중차이분석 통해 본 산정특례제도의 의료비부담 완화효과
최정규 ( Jung Kyu Choi ),정형선 ( Hyoung Sun Jeong ) 한국보건경제정책학회(구 한국보건경제학회) 2012 보건경제와 정책연구 Vol.18 No.4
과도한 의료비부담은 가계를 경제적 파탄에 이르게 한다. 이러한 문제의식에 근거해서 2005년부터 고액의 치료비가 예상되는 상병과 장기간 치료를 요하는 상병에 대해 건강보험 본인부담액의 일부를 경감하는 ‘산정특례제도’가 시행되고 있다. 본 연구는 산정특례제도 시행 전후에 나타난 개별 가구의 ‘지불능력 대비 의료비부담’ 및 ‘과부담의료비 지출가구 빈도``의 변화를 확인함으로써, 산정특례제도의 효과를 평가하는 것을 목적으로 한다. 한국복지패널 1, 4차년도 자료를 이용하였고, 분석방법으로는 성향점수매칭과 이중차이모형의 결합모형(DID Method Combined with PSM)이 활용되었다. 산정특례제도 수혜집단과 비수혜집단 모두 ``지불능력 대비 의료비부담`` 및 ``과부담의료비`` 빈도는 감소하고 있다. ``지불능력 대비 의료비부담`` 감소폭은 수혜집단이 비수혜집단보다 크지만 ``과부담의료비`` 빈도의 감소폭은 수혜집단이 비수혜집단보다 작았다. 수혜집단의 ``지불능력 대비 의료비부담`` 및 ``과부담의료비`` 발생은 모두 감소하였으나, 시기변수와 집단변수의 상호교차항을 통해 보면 ``과부담의료비`` 발생의 감소에는 산정특례제도가 기대한 효과를 내고 있다는 증거는 불충분하다. In 2006, the government implemented the policy of extending the health insurance benefit coverage to lower the out-of-pocket(OOP) share of patients of serious case. This study proposes to confirm effectiveness of the benefit extension policy by identifying changes in ‘OOP as a share of the ability to pay`` and ``incidence rate of catastrophic health care expenditure`` of each individual household as manifested before and after the benefit extension policy was implemented. The 1st and 4th year data from the Korea Welfare Panel Study (KoWePS), conducted by the Korea Institute for Health and Social Affairs (KIHASA), were used for the analysis. We used a difference in difference model with propensity score matching to assess the effect of the benefit expansion policy. We compared intervention changes in ``OOP as a share of the ability to pay`` and ``incidence rate of catastrophic health care expenditure`` between group and control group. The intervention group consisted of beneficiary of policy, and control group consisted of non-beneficiary of policy. According to the results, ``OOP as a share of the ability to pay`` and ``incidence rate of catastrophic health care expenditure`` decreased. The rates decreased overall between 2005 and 2008, while those of control group case rapidly increased rather than intervention group. The benefit extension policy was not associated with significant changes in financial burden and catastrophic health care expenditure. The policies alleviating catastrophic health payments need to be more developed.
Homologous 산화물 Zn<sub>k</sub>In<sub>2</sub>O<sub>3+k</sub>(k=1∼9)의 열전 특성
남윤선,최정규,홍정오,이영호,이명현,서원선,Nam, Yun-Sun,Choi, Joung-Kyu,Hong, Jeong-Oh,Lee, Young-Ho,Lee, Myung-Hyun,Seo, Won-Seon 한국재료학회 2003 한국재료학회지 Vol.13 No.8
In order to investigate the thermoelectric properties of $Zn_{k}$ $In_2$$O_{ 3+k}$ homologous compounds, the samples of $Zn_{k}$ /$In_2$$O_{3+k}$ / (k = integer between 1 and 9) were prepared by calcining the mixed powders of ZnO and $In_2$$O_3$fellowed by sintering at 1823 K for 2 hours in air, and their electrical conductivities and Seebeck coefficients were measured as a function of temperature in the range of 500 K to 1150 K. X-ray diffraction analysis of the sintered samples clarified that single-phase specimens were obtained for $Zn_{k} /$In_2$$O_{3+k}$ with k = 3, 4, 5, 7, 8, 9. Electrical conductivity of the $Zn_{k}$ $In_2$$O_{3+k}$ / decreased with increasing temperature, and decreased with increasing k for k $\geq$ 3. The Seebeck coefficient was negative at all the temperatures for all compositions, confirming that $Zn_{k}$ $In_2$$O_{3+k}$ / is an n-type semiconductor. Absolute values of the Seebeck coefficient increased linearly with increasing temperature and increased with increasing k for k $\geq$ 3. The temperature dependence of the Seebeck coefficient indicated that Z $n_{k}$I $n_2$ $O_{3+k}$ could be treated as an extrinsic degenerate semiconductor. Figure-of-merits of Z $n_{k}$I $n_2$ $O_{3+k}$ were evaluated from the measured electrical conductivity and Seebeck coefficient, and the reported thermal conductivity. Z $n_{7}$ I $n_2$ $O_{10}$ has the largest figure-of-merit over all the temperatures, and its highest value was $1.5{\times}$10$^{-4}$ $K^{-1}$ at 1145 K.5 K.
박현숙,최정규,Park, Hyun-Suk,Choi, Jeong-Kyu 한국통계학회 2011 응용통계연구 Vol.24 No.4
본 연구는 보험산업에서 관심을 갖는 파산확률의 근사적 추이를 살펴보기 위하여 크레임의 분포가 정규변동성 성질을 갖는 사례를 통하여 파산가능성의 추이를 살펴보고, 정확한 파산확률 유도에 결정적인 역할을 하는 계수를 추정하는 실증연구에 초점을 둔다. 추정된 결정계수와 보험위험 확률모형의 안전지수와의 연관성을 분석하여 파산확률의 추이를 진단하는 방법도 함께 진행된다. In this paper, we study an asymptotic behavior of the finite-time ruin probability of the compound Poisson model in the case that the initial surplus is large. To compare an exact ruin probability with an approximate one, we place the focus on the exact calculation for the ruin probability when the claim size distribution is regularly varying tailed (i.e. exponential claims and inverse Gaussian claims). We estimate an adjustment coefficient in these examples and show the relationship between the adjustment coefficient and the safety premium. The illustration study shows that as the safety premium increases so does the adjustment coefficient. Larger safety premium means lower "long-term risk", which only stands to reason since higher safety premium means a faster rate of safety premium income to offset claims.
오정환(Oh, Cheong-Hwan),이정태(Lee, Jeong-Tae),신의수(Shin, Eui-Su),배재희(Bae, Jae-Hee),홍수영(Hong, Soo-Young),최정규(Choi, Jung-Kyu) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.4
The purpose of this study was hapkido self-defense through the analysis of 3D Motion capture to the side the wrist escape motion is to kinematic analysis. To do this, the study hapkido instructor for seven kinematic analysis was conducted and the following results. First, the preparation phase was 68.97% of the total time, total time was 0.58 ± 0.08 s. Second, COM position did not move from side to side, front moved downward direction. Third, COM velocity the left and right, front and back and vertical was getting faster. Fourth, the angle of the right shoulder, the wrist joint operation conducted subtraction becomes larger the more joint flexion angle was found to be, each of the joint, the elbow joint was smaller the curvature. And wrist in the event, there was to difference. Fifth, the right hip joint angle of the flexion in all phase and the knee joint angle of the flexion in the escape phase. And ankle plantar flexion angle was in the escape phase. Sixth, the tilt angle of the body was gradually built the trunk.