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임채환,안동환 한국농업경제학회 2023 농업경제연구 Vol.64 No.3
Since the 2000s, North Korea has been shifting away from a socialist planned economy towards a mixed plan-market system, marking a significant transformation in its economic approach. This research concentrates on scrutinizing the North Korean consumer goods market, with a specific focus on rice. The study encompasses nine cities (five/four in Western/Eastern region), covering the period from January 2012 to December 2021. The paper adopts a theoretical framework rooted in the efficient market hypothesis, using statistical analysis to examine absolute and relative prices. Notably, it identifies nearly perfect price parity in two pairs of cities (F-H, West and D-G, East). The relative price analysis shows that all pairs are in relative equilibrium, indicating that market integration has been established across regions. These findings offer statistical evidence of the coexistence of planned and market-based elements in the North Korean rice distribution system. In addition to price analysis, this paper delves into the North Korean rice trading network and associated transaction costs in selected regions. Consequently, this study holds substantial academic distinction, offering valuable insights into North Korea's essential goods distribution system.
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소득 및 후생 변화를 통한 농지범용화 시범사업의 경제적 효과 분석
임채환,하용현,김도훈,안동환,이향미,김관수 한국농촌계획학회 2022 농촌계획 Vol.28 No.2
The food self-sufficiency rate of agricultural products in Korea, excluding rice, is around 20%, and the government is promoting various policies including a Multiple-Purpose Utilization of Paddy Fields project, to increase the self-sufficiency rate of major grains. The project for Multiple-Purpose Utilization of Paddy Fields is being promoted as a part of a program to create farmland infrastructure to facilitate the cultivation of crops other than rice in rice paddies, and pilot projects were started in four regions in 2020. The purpose of this study is to analyze the economic effects of the pilot project for Multiple-Purpose Utilization of Paddy Fields, and to propose policies to increase the effectiveness of the project. In order to analyze the economic effect, we estimated the change in farm income generated by switching from rice to other crops, and measured the effect of welfare change using the Equilibrium Displacement Model (EDM). As a result of the analysis, social welfare is expected to increase when the pilot project for Multiple-Purpose Utilization of Paddy Fields is implemented, and the income of the beneficiary farmers is also expected to improve compared to that of single-cropping when double-cropping is implemented. However, it was found that the economic feasibility of the project differs depending on the crops converted. Juksan-myeon, Gimje-si, which is an area where soybean production was successful, was analyzed from the viewpoint of increasing the economic feasibility of the pilot project. Their success factors were analyzed into four major factors: infrastructure, farming methods, education, and collaboration with local agricultural organizations. If such a success story can be utilized in the future project implementation process, it can contribute to the improvement of farm household income and national economic welfare.
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임채환 한국전산구조공학회 1997 전산구조공학 Vol.10 No.3
본 고에서는 부유구조물의 특징과 설계시 고려사항, 작용하는 하중, 구조응답 추정방법 등을 살펴보았다. 현재 국내에는 해상에 설치된 부유구조물은 아직 없으나 조선소에서 해상 발전 플랜트나 담수화설비 등을 수출한 실적은 있다. 그러나 설계기술의 많은 부분을 외국에 의존하고 있어 부유구조물의 설계 및 동적 구조응답해석 분야에 대한 국내의 많은 연구가 요구된다 하겠다.
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