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An application of the double-bootstrap data envelopment analysis to investigate sources of efficiency in the Greek poultry sector

This paper reviews a double-bootstrap data envelopment analysis of the performance of the Greek poultry sector for the period of 1994–2007. The purpose for implementing this method is to obtain consistent inferences in measuring technical efficiency and in identifying its determinants. The findings suggest that on average, technical inefficiency is present in the Greek poultry industry.


Under the variable return to scale specification, technical efficiency decreased to 90% in 2007 from 94% in 1994. In order to explain the factors influencing technical efficiency, the efficiency scores estimated in this study were regressed by using specific variables of sample firms and industry context.

The results of the regression analysis show statistically significant positive impacts on performance are factors like market size, productive flexibility and being a member of a firm group, with size and innovation activity of the firm being negative influences.

In contrast, the integration of Greece into European Economic and Monetary Union and several other capabilities of firms, related to age, vertical integration, capital intensity and skill of employees, did not have any influence. These results may help managers and policy-makers to determine adequate policies and practices for achieving performance.

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I. Keramidou and A. Mimis

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