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TECHNICAL AND SCALE EFFICIENCY OF LARGE FARMS PRODUCE ON THE MARKET IN 2005-2007 - MEASUREMENT USING NONPARAMETRIC METHOD (Efektywnosc techniczna i efektywnosc skali gospodarstw wielkotowarowych w latach 2005-2007 - pomiar metoda nieparametryczna)
The aim of the article was to determine the technical and scale efficiency of three groups of farms using data envelopment analysis. The empirical data were provided by a panel. In each of the examined groups the technical efficiency ratios deteriorated in the 2005-2007 period. The same situation was recorded also in the case of the scale efficiency (with the exception of single-person-Treasury-owned companies which had better results than the leased and purchased units).