頁籤選單縮合
題 名 | 養豬廢水防治績效及影響因素分析=Performance of Wastewater Control and Its Influential Factors in Hog Farms |
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作 者 | 蕭景楷; 楊志慶; 陳志成; | 書刊名 | 臺灣土地金融季刊 |
卷 期 | 42:4=166 民94.12 |
頁 次 | 頁189-211 |
分類號 | 445.2594 |
關鍵詞 | 養豬場; 污染防治; Hog farms; Pollution control; DEA; |
語 文 | 中文(Chinese) |
中文摘要 | 本文旨在探討養豬廢水防治投入與產出間的關係,並分析如何提昇廢水污染防治績效和缺乏績效的可能原因,及改善的空間。本文首先利用固定及變動規模報酬DEA模型計算污染防治效率值,再藉由效率值的分解進一步估算規模效率及觀察受評估豬場的防治規模報酬,結果發現多養豬場污染防治技術位於規模報酬遞減階段,欲形成較高規模效率值,則飼養規模宜在2,000頭以上。本文的分析結果亦顯示,小養豬場的污染防治較大養豬場窩易發生無效率投入的狀況,但在防治效果的改善方面,飼養規模與防治效果的改善空間並無顯著相關。 |
英文摘要 | The purpose of this study is to analyze the relationship between inputs and outputs of wastewater control in hog farms. We first use constant and variable returns to scale DEA models to estimate efficiency value of wastewater control, then decompose efficiency value to gauge scale efficiency and to investigate scale returns in wastewater control for evaluated hog farms. The results indicate that the technologies of wastewater control for most hog farms were decreasing returns to scale, while the hog farms with more than 2,000 head will be more easily to reach scale efficiency. We also find that it is easier for smaller hog farms to become input inefficiency in wastewater control, but there are no differences in the output improvements for wastewater control among hog farms with different scales. |
本系統中英文摘要資訊取自各篇刊載內容。