頁籤選單縮合
題 名 | 臺灣香蕉在日本市場之競爭性--異質寡占模型之應用=Competitiveness of Taiwan Banana in Japanese market--A Differentiated Oligopoly Model Approach |
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作 者 | 萬鍾汶; 黃文星; | 書刊名 | 國家科學委員會研究彙刊. 人文及社會科學 |
卷 期 | 8:2 1998.04[民87.04] |
頁 次 | 頁323-334 |
分類號 | 431.25 |
關鍵詞 | 香蕉外銷; 異質寡占; 產品差異性; 猜測彈性; Banana exports; Differentiated oligopoly; Product differentiation; Conjectural elasticity; |
語 文 | 中文(Chinese) |
中文摘要 | 日本香蕉市場長久以來皆為臺灣、菲律賓及厄瓜多爾三國香蕉高度集中的寡占市場 結構,且臺蕉品質公認優於菲蕉及厄蕉,故日本香蕉市場特質近似經濟理論中的異質寡占 (differentiated oligopoly)競爭。而臺蕉的出口早自1974年起便由臺灣青果運銷合作社 (簡稱青果社)統籌負責出口集運作業,青果社相當於香蕉外銷的專賣機構。本研究旨在不 完全競爭的市結構下,以實證檢定臺蕉在日本市場的異質性,並衡量青果社是否兼具寡買及 寡賣力量,由之剖析臺蕉在日本市場的競爭能力。研究首先依廠商理論建立一個異質寡占最 適化決策猜測變量模型,進而將之應用於青果社對內購入香蕉原料及出口香蕉的決策行為, 透過對香蕉出口手國的猜測彈性( conjectural elasticity )係數可衡量出日本香蕉市場 異質寡占的程度。實證結果顯示臺蕉與其他國香蕉間確實存在不完全替代性,亦即存在產品 差異性( product differentiation )。此外,青果社在日本香蕉市場非為價格接受者, 並擁有輕度的市場力量。 |
英文摘要 | The structure of Japanese banana market should be placed into the differentiated oligopoly category based on the two facts of that it is highly concentrated by the exports of three countries and product differentiation exists among exported bananas. On the other hand, the Taiwan Provincial Fruit Marketing Cooperative has being the sole authorized banana exporting agency since 1974. Thus, this study intended to empirically analyze the competitiveness of Taiwan bananas in the Japanese market in term of the oligopoly and oligopsony power exercised by the exporting agency under an imperfect competition framework. A general conceptual model of optimization of differentiated oligopoly decision making behavior, in which the degree of market imperfection was captured by the conjectural elasticity among exporting rivals, was developed initially. Then the conceptual model was empirically implemented into estimating the behavior of the Taiwan bananas exporting agency. Results showed that the Japanese banana ma rket is not perfectly competitive. And as expected, Taiwan banana is differentiated with other bananas and its exporting agent is not a price taker but possessing some oligopoly power. |
本系統中英文摘要資訊取自各篇刊載內容。