Acta Univ. Bohem. Merid. 2008, 11(1):13-17 | DOI: 10.32725/acta.2008.002421
STANOVENÍ EFEKTIVITY PŘI NERADIÁLNÍ PROJEKCI V MODELECH DEA
- University of South Bohemia in České Budějovice
Metoda analýzy obalu dat (DEA) slouží k hodnocení technické efektivity produkčních jednotek. Porovnává jednotky mezi sebou, porovnává spotřebované vstupy, vyprodukované výstupy a vyhodnocuje jejich efektivitu. V případě, že je jednotka neefektivní, z výsledků získaných metodami DEA lze určit potřebné změny ve vstupech nebo ve výstupech pro dosažení hranice efektivity. Jedním z problémů při používání klasických DEA metod jsou nereálná doporučení. Proto byly vyvinuty modifikované DEA modely (Weighted Slack-based measure of efficiency model; Generic directional distance model), pomocí nichž lze tento nedostatek vyřešit.
Keywords: metoda analýzy obalu dat, efektivita, Weighted Slack-based measure of efficiency model, Generic directional distance model
Efficiency assesment using non radial projection in DEA models
Data envelopment analysis (DEA) is used as a tool for technical efficiency evaluation of decision making units. These units are compared with each other. The comparison is based on the size of inputs and outputs. In case of an inefficient unit, there is a possible of ordaining necessary changes for achievement of the efficiency frontier. There is a problem when the recommendations for inefficient units given by the classical DEA methods are unrealistic. Modified DEA models (Weighted Slack-based measure of efficiency model; Generic directional distance model) have been developed to eliminate this problem.
Keywords: Decision Making Unit, data envelopment analysis, efficiency, Weighted Slack-based measure of efficiency model, Generic directional distance model
Published: September 19, 2012 Show citation
References
- BANKER, R. D., CHARLES, A., COOPER, W. W. Some models for estimating technical and scale inefficiencies in DEA. Management Science, 1984, vol. 30, p. 1078-1092.
Go to original source... - CHARNES, A., COOPER, W. W., RHODES, E. Measuring the efficiency of decision making units. European Journal of Operational Research, 1978, vol. 2(6), p. 429-444. Go to original source...
- TONE, K. A Slack-based Measure of Efficiency in Data Envelopment Analysis. European Journal of Operational Research, 2001, vol. 130, p. 498-509. Go to original source...
- CHAMBERS, R. G., CHUNG, Y., FÄRE, R. Benefit and functions. Journal of Economic Theory 70, 1996, p. 407-419. Go to original source...
- CHAMBERS, R. G., CHUNG, Y., FÄRE, R. Profit, directional distance functions and Nerlovian efficiency. Journal of Optimization Theory and Applications, 1998, vol. 2, p. 351-364. Go to original source...
- PORTELA, M.C.A.S., THANASSOULIS, E. AND SIMPSON, G.P.M. Negative data in DEA: A directional distance approach applied to bank branches, Journal of the Operational Research Society, 2004, vol. 55, p. 1111-1121 Go to original source...
- FRIEBELOVÁ, J., FRIEBEL, L. Application of reference direction approach in DEA by evaluation of agricultural enterprises. In 22 european conference on operational research EURO XXII, book of abstracts. Prague: University of Economics, 2007.
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