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Exploring Horizontal Mergers in Swedish District Courts Using Convex and Nonconvex Technologies: Usefulness of a Conservative Approach

Xiaoqing Chen (), Kristiaan Kerstens and Qingyuan Zhu ()
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Xiaoqing Chen: School of Economics and Management, Southeast University, Nanjing, Jiangsu, China, and IESEG School of Management, 3 rue de la Digue, F-59000 Lille, France
Qingyuan Zhu: Nanjing University of Aeronautics & Astronautics, College of Economics and Management, Nanjing, China

No 2021-EQM-05, Working Papers from IESEG School of Management

Abstract: Swedish district courts have undergone a major mergers and acquisitions program between 2000 and 2010 to centralize activity in larger and fewer courts. The purpose of this contribution is to conduct an efficiency analysis of these courts to identify the eventual efficiency gains. Distinguishing mainly between technical and scale efficiency and determining the returns to scale of individual observations, we try to find the potential rationales behind this merger wave. We are to the best of our knowledge the first to combine traditional convex with nonconvex nonparametric frontier methods to calculate efficiency before and after the mergers. It turns out that the nonconvex methods provide a more cogent ex post explanation of this merger wave.

Keywords: Horizontal merger; Technical efficiency; Scale efficiency; Data Envelopment Analysis; Free Disposal Hull (search for similar items in EconPapers)
Pages: 33 pages
Date: 2021-08
New Economics Papers: this item is included in nep-com, nep-eff, nep-ind and nep-law
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Citations: View citations in EconPapers (4)

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