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권대흠(Dae-Heum Kwon) 한국농식품정책학회 2015 농업경영정책연구 Vol.42 No.4
This paper analyzes the imperfect competitiveness in the international maize trade market. Instead of the commonly used concentration ratio, Gini and Atkinson Inequality Index based on Lorenz Curve are newly utilized to analyze market concentration level. The export concentration level empirically proved to be high compared to import concentration level. The concentration level of export side seems to be easing although reduction level is not high. However, overall imperfective competition condition has been worsened compared to 2001 level. It is mainly because the overall reduction level of the imports concentration is higher than that of the export concentration level
곡물 교역시장의 불완전 경쟁상태의 정태적 수준 및 동태적 변화에 대한 분석
권대흠(Kwon, Dae-Heum) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.11
본 연구는 최근 들어 시장의 불완전 경쟁 구조에 따른 시장 불안정 상태에 대한 우려가 가장 크게 제기되었던 시장인 곡물 교역시장에서의 연도별 불완전 경쟁의 수준과 함께 그 동태적 변화추이를 분석하였다. 기존의 시장구조 접근법에서 많이 사용되어왔던 상위 k개 국가 중심의 집중률 (Concentration Ratio: CRk)지수의 곡물 교역시장 분석상의 한계점을 명시하 고, 이에 대한 대안으로 로렌츠 곡선 개념을 도입함으로써 전체 국가들의 분포적 특징을 분석하였다. 이를 바탕으로 지니 불균등 지수 (Gini Inequality Index)와 엣킨슨 불균등 지수 (Atkinson Inequality Index)를 활용한 통계적 분석을 수행하였다. 실증적 분석결과, 연도별 수출과 수입간 불균등도 차이는 분석기간 내내 통계적으로 유의수준의 양의 추정치를 나타내었다. 또한 2002-14년 기간 동안 이러한 불완전한 경쟁 상태는 2001년에 비해서 전반적으로 심화되었다. 수출 집중도가 일반적인 인식과 달리 소폭이나마 하향세를 나타내고 있음에도 불구하고 곡물 교역시장의 불완전 경쟁상태가 심화되고 있는 것은 수 입의 국가별 분포가 수출의 경우 보다 현저하게 균등화되고 있기 때문으로 보인다. Both export and import sides of grain trade market are analyzed and compared in terms of the static levels and dynamic trends to make new empirical inference on the imperfect competition degree. Export concentration level is high compared to import concentration level. And such states have been sustained since 2001 until 2014. Unlike public concerns, the concentration level of export side seems to be easing by small degree. However, the grain trade market remains imperfect competitive market. Furthermore, overall imperfective competition condition over 2002-2014 has been worsened compared to 2001 level. It is because the reduction level of imports concentration is higher than that of the export concentration. Gini and Atkinson Inequality Index based on Lorenz Curve are newly utilized to analyze market concentration level, instead of the commonly used concentration ratio.
성명환(Sung, Myung-Hwan),권대흠(Kwon, Dae-Heum),오세익 한국농촌경제연구원 2011 한국농촌경제연구원 정책연구보고서 Vol.- No.-
The purpose of this study is to identify the status of coarse grains produced in Korea and to find implications required for facilitating the Korean minor cereal industry on the basis of conversion of consumer’s preference and the direction of agricultural policies. To this purpose, we collect and analyze basic data for identifying the status of Korean minor cereal industry through survey of distribution of coarse grains produced in Korea. There is a great opportunity for increasing production and distribution of coarse grains produced in Korea. With the spread of food consumption pattern oriented to healthy living and increasing old-age groups, consumer preference for coarse grains produced in Korea is still high. Changes of agricultural policies contribute to the great opportunity for increasing the market of coarse grains produced in Korea as well. That is, it is encouraged to grow other crops instead of rice in paddies by means of support policies because of accumulated rice stocks resulting from recent decrease in rice consumption in Korea. Referring to the result of this study, coarse grains, e.g., millet, foxtail millet, Indian millet, adzuki beans, etc., are valuable for different use as well as healthy functional food. Therefore, it is necessary to make an effort for advertising and commercializing the use of coarse grains mentioned above. By the way, cultivation of coarse grains still depends highly on manual work because of the low level of mechanized farming and it has a weak basis for soil management, e.g., drainage and water supply facilities which is thus a factor of lowering productivity and lower quality. However, it is necessary to attempt diversified cropping systems including cropping paddies, fields, etc., for improving farmers income as well as efficient use of farm land, since coarse grain has short growing period as compared to low productivity and a wide range of adaptation to the environment. With reference to current distribution of millet, foxtail millet, Indian millet, adzuki beans, etc. Nonghyup as a processing and selling union of farmers rather than local distributors have been engaged in distribution. Even though farmers association has a high market share in producers market, the share of Nonghyup as a processer and seller in wholesale market is significantly low as compared to the high share of private processors and wholesalers. The reason that a high share of farmers’ associations in producers market is not connected to the step of wholesale is due to the significantly improving capacity of private processors and intermediate wholesalers for processing and selling the cereals. However, the scale of Nonghyup’s processing and selling coarse grains at the wholesale step is stagnant, resulting in farmers associations’ lowered competitiveness as compared to the private business sector. Coarse grains can be a highly usable factor for vitalizing local agriculture. Coarse grains can be cultivated with less agricultural chemicals and are environment-friendly crops as well. Therefore, it is worth to actively enhance the farming structure of coarse grains, focused on individual farm households to organize specialized business based on local agriculture and to promote construction of production bases, e.g., installation of drainage in hillside paddies for encouraging to cultivate coarse grains in the paddies, abd installation of hire business sites for farm machines and equipment.