3D 게임 엔진 연구 : “3D 포트리스” 게임 개발 사례

우석진(Seok-Jin Woo),이동희(Dong-Hee Lee),이동건(Dong-Gun Lee),신일경(Il-Koung Shin),박승호(Sung-Ho Park),장효선(Hyo-Sun Jang),김호준(Ho-Zoon Kim),최승관(Seung-Kwan Choi),김경식(Kyung-Sik Kim) 한국멀티미디어학회 2000 한국멀티미디어학회 학술발표논문집 Vol.2000 No.2

여성의 취업부문과 출산결정에 관한 연구: 공공부문과 민간부문 간의 비교를 중심으로

우석진 ( Seok Jin Woo ) 한국사회보장학회 2010 사회보장연구 Vol.26 No.2

This paper investigates the effect of the uncertainty from child birth on fertilty decision of Korean women. The differentials between public sector and private sector are used as an identification strategy. From the 10th KLIPS wave, the sectoral differentials of fertility decisions due to career disruption uncertainty turned out to be both statistically and economically significant. It is estimated that the mothers who worked in public sector in their 30s are more likely to end up with 0.67 more children.

시장경제연구 : 어린이집 평가인증이 대기 수요에 미치는 효과

우석진 ( Seok Jin Woo ),이동하 ( Dong Ha Lee ),빈기범 ( Ki Beom Binh ) 서강대학교 시장경제연구소(구 서강대학교 경제연구소) 2014 시장경제연구 Vol.43 No.3

본 연구에서는 보육시장에서 정부가 시행하는 어린이집 평가인증제도에 따른 시설 인증이 어린이집 입소를 기다리는 대기 수요에 미치는 효과를 실증 분석한다. 보건복지부·육아정책연구소의 2012 전국보육실태조사를 이용해 4,000개 어린이집을 대상으로 분석한 결과, 평가인증 여부는 보육수요 측면에서의 정책 효과가 존재하는 것으로 나타났다. 본 고의 실증 분석 결과는 평가인증을 받은 어린이집은 그렇지 않은 어린이집에 비해 정원 대비 대기자 비율이 약 45% 포인트 높다는 것을 시사한다. 어린이집 입소 대기 현상은 보육현장에서 가장 중요한 이슈 중 하나이다. 평가인증이 보육수요자에게 다양한 신호를 전달하도록 정책적 노력이 필요할 것으로 보인다. 나아가, 시설의 평가인증제 참여를 높이기 위해 다양한 정책자금수혜를 이용한 유인 설계도 필요하다. This paper analyzes the effect of childcare center qualification system on potential latent demand for the facility. Potential demand is a phenomenon that children are waiting for entering into a childcare facility. We use data from “National Study of Childcare in 2012: a report on conditions of child care centers” by Korean Institute of Child Care and Education and Ministry of Health and Welfare of Korean government in 2012. The ratio of the number of waiting children to authorized capacity in childcare facility proxing potential demands to enter into the childcare center turns out to be about 45% point higher in the qualified facility. The government intervention achieves its purpose partly and successfully.

문화바우처가 저소득층 문화소비에 미치는 인과적 효과

우석진 ( Seok Jin Woo ),김인유 ( In Yu Kim ),정지운 ( Ji Un Jung ) 한국재정학회 2014 재정학연구 Vol.7 No.1

본 연구는 문화바우처 사업이 저소득층의 문화소비에 미치는 인과적 관계를 추정하였다. 분석을 위해 「4차(2010년) 재정패널조사」를 활용하였으며, ``소득인정액의 120%``라는 정책기준을 설정하여 회귀절단설계(regression discontinuity design)에 기초한 비모수추정(nonparametric estimation)을 수행하였다. 실증분석을 한 결과 2010년도 문화바우처 제도는 통계적, 경제적 효과가 있는 것으로 나타났다. 즉, 5% 유의수준에서 문화바우처 대상가구가 비대상가구보다 5만 원 정도 더 많은 금액을 문화비에 지출한 것으로 나타났다. 한편, 정책을 실제로 받은 저소득층만을 구분하여 분석하면 최소 3.25만 원에서 최대 22.35만 원을 소비하는 것을 알 수 있었다. 이는 문화바우처가 저소득층의 문화소비를 증가시키는 효과가 있다는 것을 시사한다. This paper estimated the causal effects of cultural voucher on the culture consumption for low-income households. To identify the causal effects, we exploited the policy assignment rule with ``120% of the appraised value of income`` under the nonparametric estimation based on RDD(regression discontinuity design) framework. Using the national survey of tax and benefit data in 2010, it was found that the cultural voucher program has the increasing effects on the culture consumption of low-income households tostatistical and economic extents. Specifically, low-income households spent more expenses than middle-income households by approximately 50,000 won in the culture services. Moreover, this study shows that the culture consumption of beneficiaries among low-income households, they spend at least 32,500 won or up to 223,500 won in the culture services.

출산 제고 정책이 한국 여성의 출산, 노동공급, 결혼에 미치는 효과

우석진 ( Seok Jin Woo ) 한국금융연구원 2008 한국경제의 분석 Vol.14 No.3

This paper estimates the effect of pro-natal policies of Korean government on fertility, labor supply, and marriage of Korean women. Using the KLIPS(Korean Labor and Income Panel Survey), a dynamic structural model is recovered and various pro-natal counterfactual experiments are implemented. The experiments show that in-kind childcare support for working mom encourages labor supply of mother, but the effect on fertility is not significant compared to the budget requirement. Universal in-cash support for families with children increases fertility rate to a significant margin but it discourages labor supply of women as well. So the policy is not a viable option in terms of fiscal sustainability. However, if one can restrict the benefit only to working women with children, although the fertility effect decreases by around 70%, the policy has a positive labor supply effect, so the budgetary burden would decrease by a significant margin.

근로장려세제가 수혜가구의 소비에 미치는 영향

김태우 ( Tae Woo Kim ),우석진 ( Seok Jin Woo ),안종길 ( Jong Kil An ),빈기범 ( Ki Beom Binh ) 아시아.유럽미래학회 2016 유라시아연구 Vol.13 No.1

In Korea, EITC system was introduced and executed in 2009. The aim of this paper demonstrates how Earned Income Tax Credit (EITC) affects the consumption of EITC group, classified as working-poor, using Differences-in-Differences-in-Differences (DDD) technique. After pre-specifying EITC and non-EITC group using the research that provides the monthly data in 2008 and 2010 of Household Income and Expenditure Survey by National Statistical Office, we analyze the effect of EITC on the actual expenditures on total consumption, durable goods consumption, non-durable goods consumption, savings and reducing on debts or liability. It turns out whereas the EITC group booted their consumption on durable goods in the overseas research, the consumption of EITC group has not increased in our study. The domestic EITC group can be regarded as households pursuing consumption smoothing. We can guess that this group would regard a subsidy due to EITC as transitory incomes so it does not increase consumption in accordance with permanent income hypothesis. Considering the increase in savings, the EITC group who gets benefits from the program seems to prefer to save up instead. This result represents that the uncertainty of the future make them consider and choose to save up instead of the current consumption. This is considered this way due to the fact that the EITC group relatively comparing to non-EITC group would not be well-prepared for their future finance issues that might occur in the future in an effort of them to reduce the financial insecurity.

경쟁위험모형을 이용한 임금이 보육교사의 이직에 미치는 효과

이동하 ( Dong Ha Lee ),우석진 ( Seok Jin Woo ),빈기범 ( Ki Beom Binh ),안종일 ( Jong Kil An ) 한국재정정책학회 2014 財政政策論集 Vol.16 No.2

This paper estimates how the hourly wage of child-care teachers affects their turnover using 2008GOMS for aiming to improve child-care quality. In particular, it focuses on estimating their employment duration in their child-care center and quantifying the wage effect on each the turnover type classified according to economic status. The results are showing that there is the wage elasticity of the their turnovers. Estimating the competing risk model based on types of turnover, we find that each hazard rate of intra-field turnover and inter-field turnover is affected negatively by hourly wage showing high statistical significance and wage elasticity.

세제혜택이 가계의 연금저축 행태에 미치는 인과적 효과

안종길 ( Jong Kil An ),우석진 ( Seok Jin Woo ),김병권 ( Byeong Kwon ),빈기범 ( Ki Beom Bhin ) 한국사회보장학회 2013 사회보장연구 Vol.29 No.3

This paper examines the effect of tax incentive for pension saving, revised in 2006, on the saving decisions of Korean households. In order to measure the causal effect of the tax incentive, we constructed the treatment group and the control group based upon their pension saving contribution in 2005. And we compared the households which contributed 3.0 million won or less in 2005 and the ones which contributed more than 3.0 million won in 2005. The former had an incentive to increase their pension saving to gain more tax benefit due to the tax reform in 2006 while the latter did not have one. Using the KLIPS, first, we estimated whether the tax change had increased the amount of pension saving. Second, we tested whether the family saving was crowded out by the retirement saving. The estimation results show that the tax change for pension saving increased the pension saving of the families with tax incentives to a statistically significant margin. On the other hand, the estimated relationship between the pension saving and total saving of the treatment group shows that their other savings are considerably crowded out by the pension saving.

지방정부의 가정외아동보호서비스 예산현황과 현장실무자의 예산운용 경험

강현아(Hyun Ah Kang),우석진(Seok Jin Woo),정익중(Ick Joong Chung),전종설(Jong Seri Chun) 한국아동복지학회 2012 한국아동복지학 Vol.- No.39

본 연구는 지방이양 이후 각 광역지방자치단체의 가정외보호서비스 예산규모 및 구조, 그리고 항목 등에서 어떤 공통점과 차이점을 보이는지 지자체 예산서를 통해 분석하였다. 또한 가정외보호서비스 실무자 대상으로 포커스그룹인터뷰를 실시하여 예산 확보 및 운영 현황에 대한 그들의 경험을탐색하고, 그 과정에서 그들이 느낀 문제점은 무엇인지 알아보았다. 분석결과, 예산 구조, 규모 및 항목에 있어 지자체별뿐만 아니라 보호서비스 유형별로도 큰 차이를 발견하였다. 이는 요보호아동이라는 시혜적 대상에 대한 국가적 차원의 보호가 적절히 이루어지지 않고 있으며, 형평성의 원칙에도 크게 어긋남을 의미한다. 이 결과를 바탕으로 본 연구는 적극적 리더십을 통해 중앙정부가 요보호아동을 위한 표준화된 서비스 수준과 표준보호비용을 마련할 것을 제안하였다. The purposes of the study were to analyze the sizes, items, and structures of out-of-home care budgets of 19 local governments in Korea. In addition, the study explored the experiences and opinions of child welfare workers securing and operating the budgets for children in care. We analyzed budget items of the local governments related to out-of-home care services and estimated the size of the budget for each local government. We also utilized focus group interviews with three groups of child welfare workers or foster parents. As we expected, the study results revealed wide differences in the items, sizes, and structure among the local governments and the types of the care services. Focus group participants also pointed out the problems of wide disparity among the local areas and the care types, Based on the results, we raised the issue of equity for children in care, equal treatment of equals, and suggests that Korean central government should provide standardized levels of services and expenditures for children in care.

그룹홈과 아동양육시설의 운영성과에 영향을 미치는 요인

정익중(Ick Joong Chung),우석진(Seok Jin Woo),강현아(Hyun Ah Kang),전종설(Jong Serl Chun),이정애(Jung Ae Lee) 한국아동학회 2012 아동학회지 Vol.33 No.4

This study investigates the factors influencing service outcomes of group homes and residential care centers, as well as the factors causing any differences between the two service outcomes. 119 and 137 5-6th graders were selected from group homes and residential care centers respectively, using the cluster sampling method. Multiple regression and Blinder-Oaxaca decomposition were used in this study. The results revealed that ``stigma``, ``school adjustment``, and ``social support`` were significant factors influencing service outcomes among children in group homes, while ``stigma``, ``primary caregivers`` attitude``, and ``peer relations`` were identified as significant factors among children in residential care centers. The study also found that the mean service outcome score for group homes was higher than that of residential care centers. The 74 percent of this difference in the mean scores was due to the difference in children` characteristics of the two out-of-home care service types. The remaining 26 percent of this difference was due to unobserved characteristics. Finally, the implications of this study in child welfare practices were also discussed.