Productivity is one of the most important concepts in management. Now - a -days, in every industry, the importnt issue is how to work with the least consumptionof different kinds of energy. Therefore the human resource of the organization as astrategic facfor, need management's special attention.

In other words, one of the most effective ways of increasing the productivityof every organization is to increase its human resource productivity. In this regard,balanced satisfaction of the human resource's needs (internal and enternal) is thekey to productivity.

In this research, two organizations were compared that both were similar inthe satisfaction of external needs of their employees, but were different in satisfyingthe internal needs of them. The results show that the organization in which bothinternal and external needs of employees were satisfied equally, the productivity ratewas higher than the other one.

The findings of this study supports the cognitive evaluation theory that statesthe introduction of extrinsic rewards, such as pay, for work effort that had beenproviously intrinsically rewarding due to the pleasure associated with the content ofthe work itself, would tend to decrease the overal level of motivation.

Productivity - Need (Motivation) - Human resources - Blalanced -Satisfaction