برآورد تابع مطلوبيت دولت و اندازه گيري شاخص رفاه در ايران

Estimate of Government Utility Function And Measurement of welfare Index in Iran

Optimal component choice of government physical policies is defined by government utility function and its effective factors. So, the optimal size of budget, public income and borrowing of government to provide the general affair costs, social affair costs and economic affair costs could be defined by utility function subject to organizational and economical constraints. In addition, by this method the government income orientation and effective variable on government utility function are also measurable. In this paper, the structural function of government expenditure and the tax which had been obtained by constraint utility function maximization, has been estimated by weighted ordinary least square. Then, by take some assumption into consideration, the parmeters of government utility function have been measured and to follow, the variable of the government utility function has been calculated. The results show that the orientation of tax income and other government incomes source are inclined to the current expenditures and the orientation of oil and gas incomes are toward the investment expenditures. Then, by use of marginal utility concept, this result has been obtained that investment expenditures in comparison with the current expenditures have more utility . Finally, if the tax incomes are allocated to current and investment expenditures, the social welfare will be increased. While, if the domestic burrowing is allocated to investment expenditures, social welfare will be increased.