臺灣自行車產業之規模經濟型態：成本函數運用

Type of Economies of Scale in Taiwan's Cycling Industry: The Application of Cost Function

楊忠城(Chung-Cheng Yang) ； 詹俊成(Chun-Chen Chan) ； 蔡宏典(Hung-Tien Tsai)

《大專體育學刊》 21卷3期 (2019/09) Pp. 212-230

https://doi.org/10.5297/ser.201909_21(3).0002

摘要

本研究目的係運用成本函數的概念，分析臺灣自行車產業之規模經濟型態。本研究方法係透過臺灣經濟新報資料庫之追蹤資料及近似無關迴歸模型，驗證臺灣三家自行車廠商之成本結構是否存在差異，以及檢測成本函數型態，進而分析自行車產業之規模經濟型態。研究結果顯示臺灣自行車三家廠商成本函數結構不存在顯著差異，且臺灣自行車廠應以超越對數模型進行成本估算為宜，最後由成本函數推算該產業型態為規模不經濟，本研究結論：其原因為企業隨著生產規模擴大，導致生產效益逐漸下降且內部產品多元形成複雜的生產線，此複雜因素可能會消耗企業內部資源或形成資源配置的無效率，使原本應帶來的利益也因此相互抵銷。

關鍵字

追蹤資料 ； 近似無關迴歸模型 ； 超越對數模型

並列摘要

This study aimed to analyze the economic structure of Taiwan's cycling industry by applying a cost function. We employed economic methods to examine panel data published by the Taiwan Economic Journal (TEJ) and a seemingly unrelated regressions (SUR) model to identify differences in the cost structures among three Taiwanese cycling companies. Further, we tested for the more suitable cost function. Then, based on the results, we estimated the economies of scale for Taiwan's cycling industry. The results indicated that the differences in the cost structure among the three cycling companies are non-significant. In other words, a translog model cost function should be used to calculate the economies of scale for Taiwan's cycling industry. We conclude that Taiwan's cycling industry has diseconomies of scale, which can be attributed to the complexity of the product line and the constantly widening industry scale. This will not only gradually eliminate the companies' internal resources but also render them unable to attain the optimal distribution of resources and offset the supposed benefits.

並列關鍵字

panel data ； seemingly unrelated regressions model ； translog model

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