malmquist productivity index based on time effect

In recent years, measuring and analyzing productivity changes is the main focus of various researches who study performance of organizations. all through widespread application of malmquist productivity index, different types of data should be considered thoroughly, otherwise any defective study of the related data and deciding factors may yield poor results. practical malmquist productivity index (pmpi) models, presented in this research, are fundamentally capable of measuring the productivity of units in a competitive atmosphere, along with the hidden economic indexes such as time value of money, amortization and promoted skills of employees. also these models would provide the productivity comparison over different periods of time. moreover, these models are reliable as well as tangible for superior managers and it is noteworthy that they would offer significantly favorable conditions, lack of which may cause the unit under evaluation to face a great deal of regression.