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최태림(Choi, Taelim),최명섭(Choi, Myoungsub) 도시정책학회 2020 도시부동산연구 Vol.11 No.1
Minimum wage has been a contentious issue in South Korea. Recently the minimum wage standard rapidly increased as a part of response to sluggish wage growth and a diverging trend of economic inequality. Rapid increase of minimum wage raised concern on job displacement in the low-wage sectors. Particularly, the youth may be a vulnerable group to unintended effect of rapid increase of minimum wage. The study aims to identify the region-specific effect of minimum wage on youth employment at a provincial level in South Korea. Although the minimum wage of South Korea uniformly applied to all regions, we assume that the effect of minimum wage would differ from region to region because of different individual characteristics as well as regional labor market conditions. We employed the multi-level logit approach to take into account two levels of features. This analysis provided empirical findings about some region-varying responses to minimum wage change. The youth in non-metro provinces, female youth, and those with two-year college eduction attainment are more vulnerable to the negative effect of minimum wage.
인구구조 변화가 지역내총생산에 미치는 영향 : 성장분해모형의 인천광역시 적용사례를 중심으로
최태림(Choi, Taelim),최명섭(Choi, Myoungsub) 도시정책학회 2021 도시부동산연구 Vol.12 No.1
Demographic change has been paid attention to policy makers in South Korea because this country experienced unprecedented aging society. Even large metropolitan cities lost their population and the ratio of working age population sharply dropped. There has been growing concern on the devastating effect of rapid demographic changes on the metropolitan cities. The paper aims to analyze the effect of demographic structural change on the regional economic growth in a case of Incheon metropolitan city of South Korea. We employ a growth decomposition method through which per capita GRDP is decomposed into some factors including productivity, reallocation of labor, employment rate, and ratio of working age population. The analytical result provides some empirical findings of the negative effect of population aging but those effects are offset by increase of labor market participation and sectoral productivity. In addition, we simulate the effect of demographic changes over 20 years. It shows that per capita GRDP of Incheon metropolitan city would reach a peak in 2028 and then decline gradually.
Tae-Lim Choi(최태림) 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
Olefin metathesis provides a versatile synthetic method to produce small, medium and large molecules. Over the past two decades, wide ranges of the molecules have been prepared by various types of olefin metathesis, such as cross metathesis (CM), ring-closing metathesis (RCM), ring-opening metathesis (ROM) reactions. For polymerization, simple polymerization using one of three mechanisms has been a dominant method to produce polymers with rather simple structures. This is because combining more than two different methods into one polymerization fails to give polymers with well-defined structures due to lack of selectivity or control. Here, we demonstrate our recent efforts for developing polymerization methodologies to promote cascade or tandem reactions. This allows us to prepare polymers with more complex structures but still with great selectivity and control. Also, we demonstrate how lessons from organic chemistry can work to improve polymerization.