http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Optimal Taxation with Durable Goods
Minhyeon Jeong,Chul-In Lee 한국재정학회 2012 한국재정학회 학술대회 논문집 Vol.2012 No.춘계
Durable goods have interesting economic features which warrant research in various fields of modern economics. This paper examines optimal taxation with durable consumption goods under uncertainty. We show that a stochastic economy should levy a heavier tax rate on durables than the tax rate on nondurables given that durables function as an insurance which helps consumption smoothing. This means that the social planner needs to discourage the excessive hoarding of durables in view of social welfare. This inference can be buttressed by our finding that the uniform tax rule still preserves in a deterministic economy. A notable finding is that the non-uniform commodity tax rule is derived under perfect credit markets. This suggests that the non-uniformity stems from the unique feature of durables that generates a persistent utility flow regardless of random shocks, which capital does not have. Due to this independent role of durables that reduces the utility gap between good and bad states, the positive effect of the intratemporal tax wedge between nondurables and durables should balance its distortionary effect at the optimum.
Hui Wang,Jeong-Tak Ryu,Minhyeon Song,Younghwan Kwon 한국물리학회 2008 Current Applied Physics Vol.8 No.3,4
Novel carbazole- and triarylamine-containing polymers, poly[N-(2-ethylhexyl)carbazole-alt-aniline] (PECA), poly[N-(2-ethylhexyl-oxy-phenyl)carbazole-alt-aniline] (PEPCA), poly[N-(2-ethylhexyl) carbazole-alt-N N-(2-ethylhexyloxy-phenyl)carbazole-alt-N-(4-aminophenyl)carbazole] (PEPCAC) showed good physical, optical, and electronic properties.Study on electrochemical properties of these polymers revealed that the band gap and HOMO energy were 2.91 and. 5.19 eV for PECA,3.14 and. 5.10 eV for PEPCA, 2.97 and. 5.01 eV for PECAC, and 3.25 and. 5.17 eV for PEPCAC. Results proved that four polymerscould be used as hole-transporting and host-matrix materials for phosphorescent PLEDs. Electrophosphorescent devices were fabricatedby using a red phosphorescent iridium complex (IR-PIQCH) as a guest and four polymers as hosts, and the device performance wasevaluated in terms of polymer structure, EL emission spectrum, luminance, driving voltage, and color coordinate.
김원기 ( Wongi Kim ),정민현 ( Minhyeon Jeong ) 국제지역학회 2024 국제지역연구 Vol.28 No.2
본 논문은 서방의 대러시아 경제제재가 러시아 경제에 미친 영향을 심도있게 분석하였다. 첫째, 대러 제재가 러시아 경제에 미친 종합적인 영향을 살펴보기 위해 제재의 종합적 강도를 측정하는 지수(index)를 구축하여 벡터자기회귀모형(VAR)을 통한 실증분석을 수행하였다. 분석 결과 제재의 장기적 영향은 유의미한 수준으로 나타났다. 특히 제재 충격은 러시아 산업생산의 대폭 하락을 유발하였고 해당 영향은 1년 이상 지속되었다. 이러한 결과를 바탕으로 본 논문은 제제가 러시아 경제에 미칠 수 있는 장기적 측면의 영향을 산업구조전환(structural transformation) 관점에서 고찰하였다. 이를 위해 부문별로 생산성이 이질적이고 금융 마찰이 존재하는 다부문경제성장모형(multi-sector growth model)을 건설하고 이를 이론적으로 분석하였다. 분석에 따르면 대러 제재는 러시아 경제의 장기 성장에 있어 매우 중요한 산업구조전환을 지연시킴으로써 러시아 경제가 이른바 중진국 함정에 빠질 위험을 높일 것으로 보인다. We provide an in-depth analysis of the impact of Western economic sanctions on the Russian economy. First, we construct an index to measure the overall intensity of the sanctions and conduct an empirical analysis using a Vector Autoregressive (VAR) model to examine comprehensive economic effects of the sanctions. The results of the empirical analysis indicate that the sanctions have significant long-term effects on the Russian economy. In particular, the sanctions shock led to a substantial decline in Russian industrial production, lasting for more than a year. Based on these findings, we consider the long-term effects of the sanctions on the Russian economy from the perspective of structural transformation. To this end, we construct and theoretically analyze a multi-sector growth model with financial frictions and heterogeneous improvements of productivity across sectors. The theoretical analysis suggests that the sanctions can delay the structural transformation of the Russian economy, which is crucial for its long-term growth, increasing the risk of the economy falling into the so-called middle-income trap.