-in this study, effect of increasing water price policy in the form of two, 10% and 20% scenarios and 10% water supply reduction policy on its productivity indicators through positive mathematical programming method (PMP)entropy has been investigated. The results show that with increasing wate' prices, CPD I and EPD2 indicators improved and indicate that increasing water price can improve rate of production and employments per cubic meter but rate of NBPDJ indicator will decrease. In water supply reduction scenarios, the situation is similar to price reduction policy but varying rate on indicators will be more.
