Efficiency and Productivity Changes of the Italian Agrifood Cooperatives: a Malmquist Index Analysis

摘要: The objective of this paper is to analyse efficiency and productivity changes a sample Italian agrifood cooperatives in the period 2000-2002. Towards aim, three-stage analysis carried out. Firstly, Data Envelopment Analysis approach used estimate technical pure scores. Secondly, DEA-based Malmquist indices are calculated inter-temporal changes. Thirdly, Tobit regression out identify reasons for differences existing among terms efficiency. main results as follows. overall not particularly high: managerial are, on average, 35% 63% "relative" optimal ones, respectively. In analysed, improves by about 2% due positive technological change. worsens because deterioration scale attenuated an increase Milk zootechnic show highest average levels Their increased considered, owing improvements both Wine present lowest Moreover, their decreased worsening capabilities. Fruit vegetables oil represent middle situations. Finally, seems be affected positively scale, technology, structural elasticity middle-long term balance whilst negatively financial exposure.