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1 – 4 of 4Yihays Fente Tarekegn, Weifeng Li and Huilin Xiao
The current paper's goal is to examine the productivity of the closed banking sector evidenced from Ethiopia. In addition, the inclusion of intangibles on productivity was…
Abstract
Purpose
The current paper's goal is to examine the productivity of the closed banking sector evidenced from Ethiopia. In addition, the inclusion of intangibles on productivity was examined in the current paper.
Design/methodology/approach
First, the standard Malmquist Productivity Index (MPI) was employed for 13 commercial banks for both stages. Second, by excluding the state-owned commercial bank, the analysis employed a bootstrapped MPI for the robust and comprehensive conclusion. Furthermore, from 2010 to 2019, the fixed effect Ordinary Least Square (OLS) regression with balanced panel data was used.
Findings
The standard MPI in both stages shows that the productivity of Ethiopian commercial banks is declining. The technological shock was the main reason for the loss. The catch-up in both stages scored above unity, mainly due to the pure efficiency change. Besides, when combined with tangible resources, the inclusion of resource-based view (RBV) proxy variables reduces technological shock regress and ultimately improves productivity change. The bootstrapped MPI also reveals that technological shock is the primary source of the productivity decline. However, efficiency change also contributes to the productivity decline based on this estimation.
Research limitations/implications
Future research could examine the more extensive productivity analysis by considering the primary sources of data collections for resource-based variables.
Practical implications
According to the study's results, banking regulatory authorities and bank management, including the shareholders, should continue to invest in cutting-edge technology to improve the productivity of the banking sector.
Originality/value
This is the first comprehensive study of productivity for Ethiopian commercial banks based on the standard MPI, bootstrapped MPI, and OLS by incorporating all resources into the analysis.
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Shujing Li, Xiaojuan Huang, Zhiheng He, Yongxiang Liu, Hui Qu and Jing Wu
The purpose of this paper is to introduce a double-stator switched reluctance machine (DS-SRM) for electric vehicles (EVs) and to propose multi-mode operations for this machine.
Abstract
Purpose
The purpose of this paper is to introduce a double-stator switched reluctance machine (DS-SRM) for electric vehicles (EVs) and to propose multi-mode operations for this machine.
Design/methodology/approach
Analysis of flux linkage distributions and torque characteristics using finite element method (FEM). Building a dynamic simulation model based on electromagnetic characteristics, mathematical equations and mechanical motion equations of the DS-SRM drive system. The paper proposes multi-mode operations (inner-stator excitation mode, outer-stator excitation mode and double-stator excitation mode) based on motor working regions. It also conducts simulation and experimental results to verify the effectiveness of the proposed multi-mode operations strategies and control schemes.
Findings
There is almost no electromagnetic coupling between the inner and outer stators due to the specially designed rotor structure and optimized windings polarity configuration. Analysis of flux linkage distributions and torque characteristics verified the independence of inner and outer stators. Proposal of multi-mode operations and corresponding control rules achieved the smooth switching between different modes.
Originality/value
The paper introduced the DS-SRM for EVs and proposed multi-mode operations, along with control rules, to optimize its performance. The specially designed rotor structure, optimized winding polarity configuration, and the proposed multi-mode operations contribute to the originality of the research.
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Indira Damarla, Venmathi M., Krishnakumar V. and Anbarasan P.
In this paper, a new front end converter (FEC) topology has been proposed for the switched reluctance (SR) motor drive. This study aims to present the performance analysis of…
Abstract
Purpose
In this paper, a new front end converter (FEC) topology has been proposed for the switched reluctance (SR) motor drive. This study aims to present the performance analysis of FEC-based SR motor drive using various types of control schemes like conventional proportional integral (PI) controller, fuzzy logic controller (FLC) and fuzzy-tuned proportional integral controller (Fuzzy-PI).
Design/methodology/approach
The proposed FEC-based SR motor drive with various control strategies is derived for the torque ripple minimization and speed control.
Findings
The steady state and the dynamic response of the FEC-based SR motor drive are analyzed using three different controllers under change in speed and loading conditions. The Fuzzy-PI-based control scheme improves the dynamic response of the system when compared with the FLC and the conventional PI controller.
Originality/value
The hardware prototype has been implemented for the FEC-based SR motor drive by using the Xilinx SPARTAN 6 FPGA processor. The experimental verification has been conducted and the results have been measured under steady state and dynamic conditions.
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Xiuyan Yan, Changju Kim, Jungkeun Kim and Masato Inoue
This study empirically investigates whether and how boycott attitudes and subjective norms influence the impact of the perceived behavioral control of boycotts on boycott…
Abstract
Purpose
This study empirically investigates whether and how boycott attitudes and subjective norms influence the impact of the perceived behavioral control of boycotts on boycott intention.
Design/methodology/approach
To test our hypotheses, we perform a hierarchical linear regression analysis using data from Japanese (n = 500) and South Koreans (n = 571).
Findings
Boycott attitudes strengthen the positive effect of perceived behavioral control on boycott intentions for Japanese and South Koreans. Contrary to our assumptions, while the direct impact of perceived behavioral control on boycott intention is not significant, there is a negative moderating effect of subjective norms for Japanese consumers.
Originality/value
We argue that when perceived behavioral control is evident in boycotts, consumers listen more to themselves than to others. Our cross-national analysis of actual boycott campaigns is the first study on boycott research to offer implications for the interaction effects among the three key antecedents of psychological motivation factors in the theory of planned behavior.
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