Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Does productivity change at all in Swedish district courts?
T2 - Empirical analysis focusing on horizontal mergers
AU - Chen, Xiaoqing
AU - Kerstens, Kristiaan
AU - Tsionas, Mike
PY - 2024/2/29
Y1 - 2024/2/29
N2 - 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.
AB - 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.
KW - Management Science and Operations Research
KW - Statistics, Probability and Uncertainty
KW - Strategy and Management
KW - Economics and Econometrics
KW - Geography, Planning and Development
U2 - 10.1016/j.seps.2023.101787
DO - 10.1016/j.seps.2023.101787
M3 - Journal article
VL - 91
JO - Socio-Economic Planning Sciences
JF - Socio-Economic Planning Sciences
SN - 0038-0121
M1 - 101787
ER -