Browsing by Author "Sheu, HJ"

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A fuzzy multiple objective programming to dea with imprecise data
(2004-10-01)
Yu, JR
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Tzeng, YC
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Tzeng, GH
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Yu, TY
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Sheu, HJ
A fuzzy multiple objective programming approach to data envelopment analysis (DEA) of imprecise data is proposed in this paper. The problems involving a mixture of imprecise and exact data for all decision making units (DMUs) could be resolved and the discriminating power of imprecise DEA (IDEA) is enhanced. Although Cooper et al. have developed IDEA to overcome the issues of imprecise data, the discriminating power is not satisfactory since too many efficient DMUs are derived. Chiang and Tzeng's approach using fuzzy multiple objective programming techniques is adopted to enhance the discriminating power of IDEA. The same data set of Cooper et al. is employed to illustrate the merit of our approach.
A new conceptual framework integrating environment into corporate performance evaluation
(2005-04-01)
Sheu, HJ
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Lo, SF
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交大名義發表
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National Chiao Tung University
Businesses aim to make profit, but very often they fail to take environmental protection into consideration in the drive to please stakeholders. In this article, a new conceptual framework for evaluating corporate integrated development through the perspective of efficiency (looking at the company's work value created in terms of input-output) is introduced. Under the proposed framework, businesses, investors and society can conveniently understand and evaluate corporate holistic performance including its operational competence, financial health and environmental friendliness. Therefore, decisions of different levels and groups could be made with programmed consideration on this purely analytical ground. Copyright (c) 2005 John Wiley & Sons, Ltd and ERP Environment.
An effective statistical approach for comparative risk assessment
(1996-06-01)
Ding, CG
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Woo, YY
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Sheu, HJ
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Chien, HC
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Shen, SF
Comparative risk assessment is an evaluation process designed to rank environmental problems based on the severity of potential hazards. The purpose of this paper is to provide an effective statistical approach to analyze perceived environmental risks. Environmental problems, evaluative criteria, and other potential moderator variables need to be determined first, and then the risk perception data collected. Repeated measures analysis is used to first test for interactions between environmental problems and potential moderator variables. If there are no significant interactions, then the risk difference among environmental problems is tested unconditionally; otherwise the risk difference is tested conditionally. Cluster analysis for environmental problems is performed only when the risk difference is significant. The clustering results can be objectively determined by using the simultaneous T-confidence intervals. Risk-based priority setting is made according to the clusters obtained. To illustrate this approach, an empirical study of comparative socioeconomic risks in Taiwan was conducted. Socioeconomic impacts areas including social security, quality of life, production cost, investment willingness, and economic resources are used as evaluative criteria. Results indicate that selected impact areas do affect relative risk differences among 24 environmental problems, and the difference is significant for each area. Therefore, cluster analysis is conducted separately for each impact area. Risk-based priority settings for clusters of environmental problems are reported.
Insider ownership structure and firm performance: A productivity perspective study in Taiwan's electronics industry
(2005-03-01)
Sheu, HJ
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Yang, CY
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管理科學系
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資訊管理與財務金融系註：原資管所+財金所
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Department of Management Science
In the context of agency theory (Jensen and Meckling, 1976. Journal of Financial Economics, 3, 305-360), how insider stock ownership relates to firm performance is explored in this paper. The relevant performance measure used is total factor productivity. Insiders are classified into executives, board members and blockholders so as to facilitate a detailed study. Five-year (1996-2000) panel data of 333 Taiwanese listed electronics firms are examined. It is observed that total insider ownership remains steady while the executive-to-insider holding ratio increases significantly. In terms of the effect on total factor productivity, neither the total insider ownership nor the board-to-insider holding ratio shows any influence on productivity. However, productivity first decreases then increases with the executive-to-insider holding ratio, forming a U-shaped relationship. The results indicate that stock ownership of top officers in high-tech firms should be encouraged to enhance productivity.
Taking CO2 emissions into a country's productivity change: The Asian growth experience
(2005-09-01)
Lo, SF
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Sheu, HJ
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Hu, JL
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管理科學系
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經營管理研究所
A country's macroeconomic policies have two basic objectives: to provide its citizens with a means to make a better living and a preferable environment. For the past decades, accompanying its fantastic economic growth, fast-developing Asia has become one of the major contributors to the increase of global carbon dioxide emissions. This paper analyzes productivity growth of ten Asian countries, namely, China, Japan, the NIEs and the ASEAN-4, by examining their outputs from economic performance and environmental impact standpoints. Productivity growth and its components are calculated using the Malmquist index. There appears to be a widening gap between the productivity growth trends without/with CO2 emissions of the ten Asian economies. This implies that the factor of productivity could be over-emphasized at great cost to the environment. A cross-country comparison analysis, considering CO2 emissions, shows that the productivity of China and ASEAN-4 deteriorated while the productivity growth of Japan and NIEs performed much better.
Under the shadow of Asian Brown Clouds: Unbalanced regional productivities in China and environmental concerns
(2005-12-01)
Hu, JL
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Sheu, HJ
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Lo, SF
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管理科學系
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經營管理研究所
China has seen rapid economic growth over the past two decades, but severe environmental problems have accompanied this, such as the looming danger of Asian Brown Clouds. This paper analyzes the regional development of China by examining economic performance and environmental factors. Technical efficiency and productivity changes in 31 regions of China are computed for the period 1997-2001. In the case of regional GDP, the fast-developing eastern (coastal) regions experience higher technical efficiency and productivity growth than the inland central and western regions. When environmental factors are incorporated, the eastern regions still perform better than inland regions, both from static and dynamic analysis. This phenomenon is termed the 'double deterioration' of the inland areas in China. Double deterioration is attributed to the lack of economic resources to replace highly-polluting production equipment and technology in those less developed regions.