The present article aims to evaluate the actual water policy management and to see if it's efficient either in macroeconomic level or in the regional one. Thus, the authors have recoursed, to a new set of explanatory variables to estimate an extended demand function in the short and long-run....

This paper focus on policy of drinking water demand with application on Tunisian panel data. We estimate a model which explains consummate volume by the five slices of tariff corresponding to the progressive pricing. Long term results show that prices UP1, UP3 and UP5 has no effects on the...