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政大機構典藏 > 商學院 > 金融學系 > 期刊論文 > Item 140.119/110538

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/110538

Title:	A New Approach to Jointly Estimating the Lerner Index and Cost Efficiency for Multi-output Banks under a Stochastic Meta-Frontier Framework
Authors:	黃台心;江典霖;趙世偉 Huang, Tai-Hsin;Chiang, Dien-Lin;Chao, Shih-Wei
Contributors:	金融系
Keywords:	Copula-based simultaneous stochastic frontier model;Cost frontier;Output price frontier;Stochastic meta-frontier;Technology gap ratio;Potential Lerner index
Date:	2016-09
Issue Date:	2017-06-28 14:54:51 (UTC+8)
Abstract:	This paper proposes the copula-based simultaneous stochastic frontier model, composed of a cost frontier and two output price frontiers, for the banking sector in order to measure cost efficiency and market power in the markets of loans and investments. The new Lerner indices are estimated by the simultaneous equations model, consisting of three frontier equations, thus avoiding obtaining negative measures of the Lerner index. We apply the stochastic meta-frontier model of Huang et al. (2014) to estimate and compare cost efficiency and market power across five European countries over the period 1998–2010. Our approach allows for calculating the technology gap ratio and evaluating the potential Lerner indices, which consist of the Lerner index and marginal cost gap ratio. Empirical results suggest that banks reallocate their output quantities toward the one with a higher measure of the potential Lerner index in order to promote profits. Adopting advanced technology and conducting merger and acquisitions are effective ways to achieve this goal.
Relation:	Quarterly Review of Economics and Finance,
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1016/j.qref.2016.09.004
DOI:	10.1016/j.qref.2016.09.004
Appears in Collections:	[金融學系] 期刊論文

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