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김석현(Suhk Hyun Kim),서종석(Jong Seok Seo) 한국농업경제학회 2000 農業經濟硏究 Vol.41 No.3
Accurate characterizations of crop yield distributions are critical for crop insurance rate making as well as agricultural risk management. The yield distribution functions of 10 major crops (rice, barley, naked barley, red pepper, garlic, onion, radish, Chinese cabbage. apple, and pear) were estimated and presented by the producing region. Unlike typical approaches, which have been based on explicit assumptions about the yield probability density function, this article selects the form of distribution that fits best to the actual distribution of crop yields. For the sample period of 1991 to 1998, logistic distribution was found best to fit to the most cases.
김석현(Suhk Hyun Kim),서종석(Jong Seok Seo) 한국농업경제학회 2001 農業經濟硏究 Vol.42 No.3
An appropriate ratemaking procedure is essential for establishing an actuarially sound crop insurance system. All-risk crop insurance premium rates for 10 major crops (rice, barley, naked barley, red pepper, garlic, onion, radish, chinese cabbage, apple, and pear) are estimated and presented by producing regions. The rates are based on 8-year data of crop yields, which follow the logistic distribution in most cases. Methods of estimating loss costs and aggregating groups of similar risks are also discussed for the efficient operation of the crop insurance system.
국가별 부패 수준이 농업인의 상대적 소득에 미치는 영향 분석
조규대(Gue Dae Cho),김석현(Suhk Hyun Kim) 한국농식품정책학회 2017 농업경영정책연구 Vol.44 No.4
Many previous studies indicate that the government corruption level of a country can affect the level of inequality. These findings imply that corruption can also affect the relative income level of farmers compared to workers of other industry sectors. This paper analyzes the relationship between corruption and the relative income of farmers by incorporating two different measures of corruption levels. Using a sample of 113 countries between 2005 and 2012, we find a non-linear impact of corruption on the relative income of farmer. In a sample of high income countries, we find negative impacts while in a sample of low income countries, the impacts are positive.
서종석(Jong Seok Seo),김석현(Suhk-Hyun Kim),조규대(Guedae Cho),강혜정(Hye-Jung Kang) 한국농업경제학회 2009 農業經濟硏究 Vol.50 No.3
The two main purposes of this paper are to identify critical success factors(CSFs) for high in-come farms/farm firms and investigate the explanatory power of these CSFs on the performance of farms/farm firms. Through a literature review, a list of 12 CSFs consisting of 33 items was compiled. A survey was conducted for 200 farms/farm firms of which 119 responded. Survey re-sults show that CSFs have highly significant explanatory power for the performance of farms/farm firms. While marketing and P.R., attracting customers, managing farms, and raising productivity are the most explanatory CSFs, sharing value and stability of managing are the least explanatory CSFs.
김석현 한국농업경제학회 2002 農業經濟硏究 Vol.43 No.5
Many changes have been taking place in agriculture. The changes continue to have impacts on agricultural economics teaching and research. In an environment of continuing change, many agricultural economics departments in the U.S. have changed their name and curriculum to attract new students who are not interested in production agriculture. This suggests that we, who are on agricultural economics faculty in Korea, need to seriously consider bold changes in curriculum and department name.
전라남도 시설채소 농가의 합리적 경영을 위한 작부체계 연구
이을경,김석현 전남대학교 농업과학기술연구소 2000 農業科學技術硏究 Vol.35 No.-
This study analyzes the cropping system and the income of greenhouse farms in chonnam province, and seeks an efficient farm plan to increase their income. Since the middle of 1980's the demand for fresh vegetables and the size of greenhouse horticulture farms have been expanding rapidly along with the general standard of living. The area of the greenhouse horticulture which accounted for 31% of the total area of the vegetable planted in 1993, has increased to 54% in 1998. Vegetables such as strawberries, watermelons, tomatoes, and peppers are crops in which farmers can make a large income. But Most of the farmers have problems of inefficient management as well as capital shortage, so they are exposed to risks. Methods such as maximin, minimax, QP, MOTAD, Target MOTAD are used to manage risks and offer efficient farm plans. According to the specific situation they are faced, farmers can make a decision with results concluded by each method.