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이윤탁,윤충한 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.8
Electric vehicles (EVs) play an increasingly important role in reducing the greenhouse gas emissions related to transportation. To encourage EV adoption, policymakers have designed policies to promote EVs, such as consumer price subsidies and tax benefits. This study shows that EV charging station subsidies are probably more effective in promoting EV adoption than consumer subsidies and tax benefits, due to the presence of two-sided network externalities in the EV market. This paper uses new vehicle registry data from Korea and a two-sided market framework to show positive feedback effects between EV purchases and EV-charging station infrastructure when network externalities are present. Estimates suggest a strong positive connection between EV purchases and the expansion of the EV-charging station network. In this study, we estimate the impact of charging station subsidies on the spread of charging stations. The elasticity of the relationship between setting up new charging stations and station subsidies is quite large and may go up to 4.583. Due to the positive feedback effects between EV purchases and the setting up of EV-charging stations, for a given level of government spending, policymakers can be more efficient when they use both types of incentive policies relating to consumer purchases and station subsidies than when they implement only one type of incentive policy. 전기자동차는 교통관련 온실가스 배출 감소에 점점 더 중요한 역할을 하고 있다. 정부는 전기자동차의 보급을 촉진하기 위해서 전기차 구매자들에게 파격적인 보조금과 세금 혜택을 주고 있다. 이 연구에서는 전기차시장에서의 양면시장 네트워크 외부효과의 존재 때문에, 전기차 보급촉진을 위해서는 전기차 충전소 보조금을 적극적으로 쓰는 것이 매우 효과적일 수 있음을 보인다. 이 논문에서는 한국의 신차등록 데이터와 양면시장 실증모형을 이용하여 전기차 구매와 전기차충전소의 설치간에 상호영향을 주는 피드백효과의 존재를 실증적으로 밝힌다. 또한 충전소 보조금이 충전소 설치 확산에 어느 정도 영향을 미치는지 추정한다. 충전소에 주는 보조금에 대한 충전소 설치 탄력성은 4.583으로 보조금이 충전소 설치에 매우 크게 영향을 미치는 것으로 나타났다. 이러한 분석결과는 정부의 예산이 한정되어 있으므로 양면시장 네트워크효과의 성질을 고려할 때 기존에 강조하던 전기차 구매보조금이나 세제혜택 정책보다 충전소 보조금을 동시에 중요시하는 정책이 경제적으로 효율적임을 함의하고 있다.
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최정실,하준영,이준수,이윤탁,정세웅,신동준,한준희,이찬,서동욱 한국학교보건학회 2015 韓國學校保健學會誌 Vol.28 No.3
Purpose: The purpose of the study was to survey male high school students on their MERS(Middle East Respiratory Syndrome)-related knowledge, risk perception, and health behaviors and to identify the factors affecting health behaviors during the MERS outbreak in Korea. Methods: The subjects in this study were 144 students in a male high school. Data were collected through self-reported questionnaires in July, 2015. The collected data were analyzed by ANOVA, Pearson’s correlation and multiple regression using SPSS/WIN 21.0. Results: The proportion of correct answers to questions testing MERS-related knowledge was 71.6% among male high school students; their health behaviors were rated at 48.9%; and their risk perception rate was 1.8 out of 4. There was a positive correlation between knowledge, risk perception, and health behaviors. Knowledge and risk perception explained 15.1% of the variance in health behaviors. Conclusion: To improve students’ health behaviors, their risk perception and knowledge over MERS should be strengthened. Therefore, it is necessary to develop and implement efficient and feasible MERS education programs for high school students.
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