The Study of Aquiculture Subsidy Policy on Externality of Production and the Difference in Fish Species: The Case of Da-Cheng Township, Chang-Hua County in Taiwan

• Main Authors: Hsiang-wei Tsai, 蔡相偉
• Other Authors: Chao-ning Liao
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/29131369481765721782

碩士 === 國立成功大學 === 政治經濟學研究所 === 96 === Using Da-Cheng township, an area with severe land subsidence in the south-west coast of Taiwan, as an example, the study tries to construct the relationship between the land subsidence level and groundwater use by considering the externality of groundwater extraction from aquiculture farmers. The relationship is then incorporated into our economic model as a constraint to analyze how a newly proposed progress subsidy for land subsidence control might affect each farmer’s production decisions. The results indicate that if the government set the subsidy pattern with a fixed 5% progressive ratio and to limit the groundwater pumping in Da-Cheng township by its total amount, the large farmers may not need to reduce their groundwater pumping accordingly. Yet, if the subsidy model is based on the historical highest and the lowest profit records, there would be huge differences in terms of the fallow areas and the reduced amount of the underground water pumping under the same regulation. In conclusion, no matter what subsidy model the government adopts on land subsidence control in the future, in order to meet the needs of the large-scale aquaculture firms and to minimize the government’s expenditures, and to allow large aquaculture firms to maintain their operations, regulations (controls) on the total amount of ground water pumping in Da-Cheng township should be reinforced.