Authors
1 Assistant Professor, University of Shahid Beheshti, Tehran, Iran
2 M.A. in Economics
Abstract
In this paper, we use data envelopment analysis (DEA), a specific non-parametric method, to obtain the efficiency of sugar produces. The main advantage of these non-parametric method, comparing parametric one, is that there is no necessity to specify a production function, and also, they provide some ways to calculate the efficiency of multi-product firms.
In this study, we measure the efficiency of 33 sugar factories of Iran in 1999. For this purpose, technical and scale efficiency of the sugar factories are calculated. The result shows the average technical efficiency is 69 percent. In addition, the technical efficiency of 7 factories including Neishabour, Piranshahr, Joveen, Isfahan, Eghlid, Miyandoab and Ghazvin is 100% relatively.
Also, the results of the scale efficiency show that 14 factories satisfy the efficient boundary condition and the average scale efficiency of the factories is about 75 percent. In addition, the rank of the efficient factories is determined, using different ranking methods.
Keywords
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