http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Foreign Aid and Donor's Exports to the Recipients: The South Korean Case
Yunhee Choi(Yunhee Choi) 한국학술연구원 2022 Korea Observer Vol.53 No.4
This paper examined the relationship between foreign aid and export, for the case of Korea from 1965 to 2015. I argue that foreign aid promotes donor's export to the recipient for following reasons: (1) the explicit and implicit tied-aid agreements directly increase export; and (2) implementing aid policy involves transferring not only money but also people. Thus, it serves as building the political, economic, and social relationships between donor and recipient countries. Those spillover effects of foreign aid can increase the export of donor countries. By applying a dynamic gravity model with GMM estimators, I provided empirical evidence that Korean bilateral ODA is positively related to its export to the recipients. The result showed that the impact of Korean ODA on its exports is positive and more significant in the post-1990s. In specific, for the later period, a percentage increase in Korean bilateral aid is associated with 0.095% increase in export in the short-term and 0.22% increase in export in the long run.
Choi Yunhee,Pandey Bhawana,Li Xiao‐Xi,Lee Yong‐Min,Cho Kyung‐Bin,Nam Wonwoo 대한화학회 2021 Bulletin of the Korean Chemical Society Vol.42 No.11
Density functional theory calculations were performed to study the Lewis acid (Sc3+) effects on the reactivity of ultrahigh-valent chromium-oxo species toward both C H bond activation and sulfoxidation reactions. Calculations confirm that the oxidizing power of chromium-oxo species is enhanced by binding Sc3+ ion. In sulfoxidation reactions, especially, binding Sc3+ ion enhances the redox potential of the chromium-oxo species, whereby the activation barrier is decreased dramatically. The details of the reactions obtained by theory are disclosed in this work.
Temporal Changes of Lung Cancer Mortality in Korea
Choi, Yunhee,Kim, Yeonju,Hong, Yun-Chul,Park, Sue Kyung,Yoo, Keun-Young The Korean Academy of Medical Sciences 2007 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.22 No.3
<P>The lung cancer mortality in Korea has increased remarkably during the last 20 yr, and, it has become the first leading cause of cancer-related deaths since 2000. The aim of the current study was to examine time trends of lung cancer mortality during the period 1984-2003 in Korea, assessing the effects of age, period, and birth cohort. Data on the annual number of deaths due to lung cancer and on population statistics from 1984 to 2003 were obtained from the Korea National Statistical Office. A log-linear Poisson age-period-cohort model was used to estimate the effects of age, period, and birth cohort. The both trends of male and female lung cancer mortality were both explained by age-period-cohort models. The risks of lung cancer mortalities for both genders were shown to decline in recent birth cohorts. The decreasing trends begin with the 1939 birth cohort for men and 1959 for women. The mortality pattern of lung cancer was dominantly explained by a birth cohort effect, possibly related with the change in smoking pattern, for both men and women. Finally, the mortality of lung cancer in Korea is expected to further increase in both men and women for a while.</P>