Merger and acquisitions in South African banking : a network DEA model

Wanke, Peter; Maredza A.; Gupta, Rangan

dc.contributor.author	Wanke, Peter
dc.contributor.author	Maredza A.
dc.contributor.author	Gupta, Rangan
dc.date.accessioned	2017-06-28T13:32:14Z
dc.date.issued	2017-10	en
dc.description.abstract	Banking in South Africa is known for its small number of companies that operate as an oligopoly. This paper presents a strategic fit assessment of mergers and acquisitions (M&A) in South African banks. A network DEA (Data Envelopment Analysis) approach is adopted to compute the impact of contextual variables on several types of efficiency scores of the resulting virtual merged banks: global (merger), technical (learning), harmony (scope), and scale (size) efficiencies. The impact of contextual variables related to the origin of the bank and its type is tested by means of a set of several robust regressions to handle dependent variables bounded in 0 and 1: Tobit, Simplex, and Beta. The results reveal that bank type and origin impact virtual efficiency levels. However, the findings also show that harmony and scale effects are negligible due to the oligopolistic structure of banking in South Africa.	en_ZA
dc.description.department	Economics	en
dc.description.embargo	2018-10-30
dc.description.uri	http://www.elsevier.com/locate/ribaf	en
dc.identifier.citation	Wanke, P., Maredza A. & Gupta, R. 2017, 'Merger and acquisitions in South African banking : a network DEA model', Research in International Business and Finance, vol. 41, pp. 362-376.	en
dc.identifier.issn	0275-5319 (online)	en
dc.identifier.other	10.1016/j.ribaf.2017.04.055	en
dc.identifier.uri	http://hdl.handle.net/2263/61160
dc.language.iso	English	en
dc.publisher	Elsevier	en
dc.rights	© 2017 Elsevier B.V. All rights reserved. Notice : this is the author's version of a work that was accepted for publication in Research in International Business and Finance. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Research in International Business and Finance, vol. 41, pp. 362-376, 2017. doi : 10.1016/j.ribaf.2017.04.055.	en
dc.subject	Banks	en
dc.subject	Data envelopment analysis (DEA)	en
dc.subject	Merger and acquisition ((M&A)	en
dc.subject	Network	en
dc.subject	Robust regression analysis	en
dc.subject	South Africa (SA)	en
dc.title	Merger and acquisitions in South African banking : a network DEA model	en_ZA
dc.type	Postprint Article	en