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題名 | 特徵隱含價格及需求函數之推估--以臺灣省肉類、魚介類為例=Estimating the Implicit Price and the Consumer Demand Function--An Example of Meat of Fish Products in Taiwan |
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作者 | 胡士文; Hu, Shih-wen; |
期刊 | 臺灣土地金融季刊 |
出版日期 | 19971200 |
卷期 | 34:4=134 1997.12[民86.12] |
頁次 | 頁219-239 |
分類號 | 483 |
語文 | chi |
關鍵詞 | 特性; 隱含價格; 營養素; 特徵價格函數; Characteristics; Implicit price; Nutritions; Hedonic price functions; |
中文摘要 | 本文以肉類及魚介類等產品利用二次Box-Cox函數型態從事特徵性價格函數之推 估,並推估各種營養素之邊際隱含價格,進而推估消費者對各種營養素之需求情形。本文 以民國79年橫斷面資料為實證分析之基礎,發現(1)最佳之特徵性價格函數為半對數函 數。(2)蛋白質、礦物質、維生素之邊際隱含價格為正,脂肪、醣類之邊際隱含價格為 負。(3)農家對各種營養素的消費均較非農家高。(4)所有營養素之消費水準均明顯受 到其邊際隱含價格之影響,表示利用特徵性價格函數來推估營養素之需求函數為一可行之 方法。(5)特徵需求函數之推估應以2SLS方法推估,可避免OLS方法會產生推估偏誤之問 題。 |
英文摘要 | This paper employs quatratic Box-Cox transformation to estimate the hedonic price functions for various categories of meat and fish produots. Through the estimared Implicitly marginal prices of nutritions for various products. Also, the demand functiopns for nutrition is estimated in this paper. By applying the cross-section data of 1990, the major empirical results can be summarized in the following: (1) the semi-log hedoric price frunction was found the best fuction fitting the data. (2) The marginal implicit price of protein, mineral and vitamins are poritive, the marginal implicit price of fat and carbohydrate are negative. (3) The consumption of nutritions for farm families was higher than the others, (4) The significance of the variable-the implicityly marginal prices of nutritions inplicd that the estimation of the demand for nutrition using hedonic price function was one of the good ways, (5) A two-stage least squares estimation procedure is applied to estimate hedoric deman functions, it will be biased if estimated by OLS. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。