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金璟宅 濟州大學校 亞熱帶農業硏究所 1990 亞熱帶農業硏究 Vol.7 No.-
The objectives of this study are to provide present situation of Kujwa Agricultrual and Industrial Complex in Cheju Island and to suggest the direction of efficient and systematic development. Fulfilling the two research objectives depends on obtaining data from the firms' employee and employer in that area. In order to obtain the very datailed information for this study it was necessary to gather data by a survey. After analyzing the data we have reached the conclusion. Efficient and systematic development approaches suggested are as follows : 1) Train unskilled people to create employment in this area, 2) In order to maximize employment effect in the area it is necessary to strengthen the selection of the firms, 3) Adopt a rigorous environmental policy to conserve higher environmental quality levels, 4) It is required for the government to invest more capital for harbor facilities, 5) Need to develop a technique and to improve productivity, 6) Establish networks of information to communicate from one area to another, and 7) Improve employees' welfare.
UR타결에 따른 농산물 시장개방이 제주농업에 미치는 영향
김경택 濟州大學校 亞熱帶農業硏究所 1995 亞熱帶農業硏究 Vol.12 No.-
The paper has reviewed the major contents of the Agreement of Uruguay Round in the agricultural sector. And also it has calculated the amount of damage in Cheju Island, caused by the market liberalization for the period of between 1995 and 2001 by using the material published by Korea Rural Economic Institute. From the result of market liberalization it was found that mandarine, beef, sweet potato, pork, and potato are most severely damaged crops. The amount of damage for mandarine is 79.5 billion won, and beef 46.4 billion won, sweet potato 46 billion won, pork 42 billion won, potato 40 billion won, and so forth. Total amount of damage due to the market liberalization for the Cheju farm household is 1,041 billion won. The amount of damage per farm houshold in Cheju Island is 2.5 million won which is the biggest amount of damage in the nation. In fact, the amount of damage caused by the market liberalization for cheju agricultural industry is five times more than Kangwon province.
The Problem of Identification in Hedonic Model
김경택 제주대학교 환경연구소 1997 환경연구논문집 : 제주대 Vol.5 No.-
The paper analyzed the identification problem. If the hedonic price function is nonlinear, then there is a price variation for characteristics. thus, both implicit prices and quantities of attributes since they are jointly chosen. This is what we called the simultaneous equation bias. In order to solve this problem, Mendelsohn suggested using predicted marginal prices for demand estimation. In other words, exogeneous marginal price variation is needed. Furthermore, in a single market it is necessary to restrict the functional form of the hedonic equation to identify the demand equation. Diamond and Smith suggested the use of market segmentation as a solution of the identification problem. Thus, market segmentation wil allow the next step of demand estimation. To account for possible interactions among the demands for characteristics, a demand system for housing characteristics is specified. A flexible functional form, the LA/AIDS, is used for empirical demand analysis.
김경택,강동일 濟州大學校亞熱帶農業硏究所 1996 亞熱帶農業硏究 Vol.13 No.-
SummaryThe overall objective of the reseach is to study the status and problems for the joint sale and to examine the plan to activate the joint sale.Recently the market condition for the Citrus Industry has been changed by the import liberalization. As a counterplan it is needed to improve the market negotiation power through the activation of joint sale. At this moment, however, the joint sale has not been used in the Citrus Industry because of the difficulty of application. In order to activate the joint sale it will be necessary to improve the marketing structure, to change the recognization and attitude of the Agricutural Cooperative and producers, and to establish the system of comprehensive information for the Citrus Industry.
하우스 장미 切花裁培 技術確立에 관한 硏究 : II. 切花的 장미의 消費需要 豫測 II. Forecasts of Consumption Demand for Cut Flowers
金璟宅 濟州大學校 亞熱帶農嶪硏究所 1992 亞熱帶農業硏究 Vol.9 No.-
The research objective is to furnish information on how consumption of cut flowers is affected by certain variables, in particular, per capita Gross National Product (GNP). Such information could be used to farmers and public officers whether to supply cut flowers more efficiently in the near future. To meet this research objective, the double log functional form was used to measure the value of cut- flower consumption. In this research we assume that only one variable affect to the other variable, the consumption of cut flowers, ceteris paribus. Using the annual time-series data over the period 1975 to 1991. the cut flowers consumption was regressed on per capita GNP which is an explanatory variable. The t-ratio from regression is 18.78, allowing us to reject the null hypothesis. The results showed that the income elasticity for cut flowers consumption is 3.24 suggesting that a one percent increase of the per capita GNP would increase the cut-flower consumption for each person by 3.24 percent. The estimated coefficients of the model were used to generate an ex post forecast over the ten-year period, from 1993 to 2002. The cut-flower consumption for each person will increase by 2,120 won and 11,422 won in 1993 and 2002 respectively. Forecasts for the next ten years are presented in Table 5. The results indicate that with a persistent increase in per capita GNP the cut-flower consumption will increase continuously.