結合資料包絡分析與聚類分析進行綠色供應商評選

為確保有高品質、低成本且可信賴的物料供應來源，企業通常希望與個數較少但可靠的供應商建立較長期的合作夥伴關係，供應商評選因而成為採購管理策略面的重要議題。本文在探討以資料包絡分析法（DEA）進行供應商評選的合理程序。詳言之，可先利用DEA找出供應商的交叉效率指標與離群指標，藉以評估供應商的技術績效與發展方向合適性。接著，建立供應商在這兩個指標上的接近關係，藉以進行聚類分析，找出最適當的供應商分群。最後，對各群供應商進行分析，並在考慮物料需求數量的情況下，找出一個交叉效率高而離群值低的供應商組合做為最終決策。採用此程序進行供應商評選，除較為客觀外，還可進一步利用DEA差額變數分析結果提供獲選供應商績效改進的參考方向。

關鍵字

供應商評選；資料包絡分析；交叉效率指標；離群指標；聚類分析

並列摘要

To ensure a high-quality, low-cost and reliable source of material supply, the trend of contemporary supply management is to use fewer but reliable suppliers, and maintain long-term partnership with the selected suppliers. Therefore, the supplier selection becomes an important strategic issue in purchasing management. In this paper, how to select suppliers using the data envelopment analysis (DEA) is discussed. Specifically, at first, the cross-efficiency index and the Maverick index are used in evaluating the technical performance and the suitability of developing direction of a supplier, respectively. Then, the suppliers are clustered into groups using a proximity relation, created from the distances of the suppliers measured on these two dimensions. Finally, under the consideration of demand, a set of suppliers with high cross-efficiency and low Maverick index is suggested as the final decision. In addition to the advantage of objectiveness, this approach can also provide suggestions for further improvement by using the slack analysis in DEA.

並列關鍵字

Suppliers selection ； Data envelopment analysis ； Cross-efficiency index ； Maverick index ； Clustering analysis

參考文獻

Banker, R.D., Charnes, A. and Cooper, W.W. (1984), Some models for estimating technical and scale efficiencies in data envelopment analysis, Management Science 30 (9), 1078-1092. doi: 10.1287/mnsc.30.9.1078

Braglia, M. and Petroni, A. (2000), A quality assurance-oriented methodology for handling trade-offs in supplier selection, International Journal of Physical Distribution and Logistics Management 30 (2), 96-111. doi: 10.1108/09600030010318829

Charles, A., Weber, J., Current, R., and Benton, W.C. (1991), Vendor selection criteria and methods, European Journal of Operational Research 50 (1), 2-18. doi: 10.1016/0377-2217(91)90033-R

Charnes, A., Cooper, W.W. and Rhodes, E. (1978), Measuring the efficiency of decision making units, European Journal of Operational Research 2 (6), 429-444. doi: 10.1016/0377-2217(78)90138-8

de Boer, L., Labro, E. and Morlacchi, P. (2001) A review of methods supporting supplier selection, European Journal of Purchasing & Supply Management 7 (1) 75-89. doi: 10.1016/S0969-7012(00)00028-9

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結合資料包絡分析與聚類分析進行綠色供應商評選

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