consideration of performance changes in outsourcing process power distribution company in mashhad

in recent years, outsourcing as a means of promoting and development of productivity has been considered to be in line with the country's 20-years vision document and article 44 of the constitution by administrators of organizations. this process has been implemented in different forms in order to effectively downsize the government. iutun this study, technical efficiency and scale efficiency of eight power distribution companies of mashhad, before and after outsourcing or within three years 2006 to2008, is evaluated by data envelopment analysisutu. ututhis study developed data envelopment analysis to a dynamic model by utilizing of window analysisutu in order to utuevaluate changes in the context of time before and after outsourcing. utthe results of this study show that the efficiency of mashhad power distribution company has been reduced significantly compared with before the transfer.