Showing papers by "Wen-Min Lu published in 2009"
TL;DR: To conduct a valid and reliable evaluation process while applying the FHC's case in Taiwan, the slacks-based measure (SBM) and super-SBM models are integrated in order to directly handle the slack and identify the best performers.
69 citations
TL;DR: A network-based approach for further increasing discrimination among these efficient DMUs is proposed, which tends to rank high the DMUs that are not specialized and have balanced strengths.
Abstract: Data envelopment analysis (DEA) is known to produce more than one efficient decision-making unit (DMU). This paper proposes a network-based approach for further increasing discrimination among these efficient DMUs. The approach treats the system under study as a directed and weighted network in which nodes represent DMUs and the direction and strength of the links represent the relative relationship among DMUs. In constructing the network, the observed node is set to point to its referent DMUs as suggested by DEA. The corresponding lambda values for these referent DMUs are taken as the strength of the network link. The network is weaved by not only the full input/output model, but also by models of all possible input/output combinations. Incorporating these models into the system basically introduces the merits of each DMU under various situations into the system and thus provides the key information for further discrimination. Once the network is constructed, the centrality concept commonly used in social network analysis—specifically, eigenvector centrality—is employed to rank the efficient DMUs. The network-based approach tends to rank high the DMUs that are not specialized and have balanced strengths.
44 citations
TL;DR: The main concept is derived as a result of taking one certain DMU as a fixed benchmark and estimating the efficiency scores of the remaining DMUs based on that benchmark pair by pair until all of the DMUs have served as the fixed benchmark.
30 citations
TL;DR: It is shown that there is a positive relationship between a KMS and variations in organizational efficiency and a decision-making matrix and conceptual map are presented to help EDD managers improve their managerial efficiency and skills.
Abstract: This study uses slacks-based data envelopment analysis (DEA) to examine the performance of electricity distribution districts (EDDs) in Taiwan in 2004. It also explores the relationship between a knowledge management system (KMS) and variations in the efficiency of EDDs in the Taiwan Power Company from 2000 to 2004. The findings show that the EDDs performed well in terms of managerial efficiency in 2004, and 75% of the districts exhibited an increasing performance variation when using cross-period analysis for that period. We show that there is a positive relationship between a KMS and variations in organizational efficiency. In addition, we present a decision-making matrix and conceptual map to help EDD managers improve their managerial efficiency and skills. This study contributes to the field of knowledge management research by applying the DEA model to link the performance between KMS and an organization. Several significant findings emerge from the study.
13 citations