Does productivity change at all in Swedish district courts? Empirical analysis focusing on horizontal mergers

Xiaoqing Chen, Kristiaan Kerstens and Mike Tsionas

Socio-Economic Planning Sciences, 2024, vol. 91, issue C

Abstract: This contribution is the first to compare the Malmquist and Hicks-Moorsteen productivity indices in the context of horizontal mergers of Swedish district courts during the period 2000-2017. It is also the first to calculate these productivity indices for convex and nonconvex nonparametric frontier specifications in courts under both constant and variable returns to scale. Moreover, a one-sample symmetric Wilcoxon test and a t-test are performed on the average productivity index to determine whether it is significantly different from unity. Also Li-test statistics examine the differences in productivity between these two indices or between convexity and nonconvexity for a given index. Furthermore, we compare these two productivity indices before and after the mergers to investigate the impact of the horizontal merger activity. The empirical results indicate that overall there is no significant technical change at all. Furthermore, horizontal mergers overall do neither result in technical change, nor in post-merger productivity gains.

Keywords: Horizontal mergers; Malmquist productivity index; Hick-Moorsteen productivity index; Convex and nonconvex nonparametric technologies (search for similar items in EconPapers)
Date: 2024
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Citations: View citations in EconPapers (2)

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Working Paper: Does productivity change at all in Swedish district courts? Empirical analysis focusing on horizontal mergers (2024)
Working Paper: Does Productivity Change at All in Swedish District Courts? Empirical Analysis Focusing on Horizontal Mergers (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:soceps:v:91:y:2024:i:c:s0038012123002999

DOI: 10.1016/j.seps.2023.101787

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