台灣壽險業經濟成本分析

多元產出經濟的概念在經濟學上廣泛的運用在各種產業的生產經濟效率分析上。在考慮要素價格與產出之下，建構起廠商的成本函數；再以規模經濟與範疇經濟的存在與否來剖析其生產是否具有經濟效率。本研究以超越對數成本函數為理論基礎，從成本面看台灣壽險業者是否有經濟效率存在。本文以影響壽險業者經營成本的主要因素，組織架構以及通路為探討重心。首先，實證估計在不同的影響因素之下所建立起的成本函數；再利用成本函數比較其在射線規模經濟、特定產品規模經濟及產品間互補性的異同。除了判別壽險業者在經營上是否具有經濟效率之外，進而嘗試找出適合不同組織架構與通路搭配之下最具有相對比較利益的產品組合為主要研究目的。實證結果顯示，台灣壽險業具有規模經濟可擴大生產降低長期平均生產成本；本國壽險業者相對於外商具有較規模經濟上的優勢。在個別產品方面，本國壽險業者在經營個人壽險上具有單一產品規模經濟，而外商則在個人健康傷害險上具有比較利益。再者，不論是否具有特定產品產出規模經濟，在不同的組織及通路下都具有範疇經濟的存在，壽險業者可藉由具有成本互補性的產品組合來達到降低成本提高獲利的目標。本文第一章為研究背景與研究動機；第二章為文獻回顧，介紹國內外過去運用多元產出經濟分析產業效率的研究。第三章中對於本文的研究方法做一理論上的概述；第四章是關於本研究的實證模型、資料及變數定義；第五章及第六章為實證結果分析與結論。

關鍵字

超越對數成本函數；多元產出經濟；成本分析

並列摘要

Multi-production economy technology has been established for analysis of the cost efficiency of various industries. By using the input unit price and output quantity as endogenous variables, the transcendent logarithm cost function is utilized in this study to estimate the cost characteristics of life insurance in Taiwan. Using the economic efficiency benchmarks, the existence of economy of scale can be examined and further investigated. Considering cost structure features such as organization and distribution, the reduced form cost function and the indicators of economic efficiency were derived. The existence of global ray scale economies, product specific scale economies and pair-wise cost complementary can imply the cost comparative advantage product for different organizations and distribution formats. Pursuing the optimal cost saving combination and product mix is the goal of this study. As the empirical result exhibited, there are global ray scale economies of life insurance in Taiwan. The domestic firm showed a higher increase in return to scale than was observed in foreign insurers. Furthermore, it is suggested that domestic insurers have control over the individual life while foreign insurers control the individual accidents and health life insurance.. The existence of the scope of the economy in each sub-sample also indicated the optimal product composition under the consideration of organization and distribution. This paper is organized as follows. In the first section, the research background and motivation in the introduction is described. In section two, the literature about economic efficiency of life insurance industry is reviewed, and in the third section, the fundamental theory of multi-production and measurement of economic efficiency will be discussed. Model specification and data description are expressed in section four, and the empirical result and conclusion are discussed in sections five and six, respectively.

並列關鍵字

Translog Cost Function

參考文獻

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國際替代計量

台灣壽險業經濟成本分析

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