evaluation of agricultural policies is an important issue in agricultural economics literature. economists evaluate policies on base of their welfare effects. the objective of this study is outcome subsidies removing for wheat and bread and its effect on producers and consumers. the minimization of changes in welfare loss is used in this study. the results of the welfare outcomes in wheat marke...

In many real systems in which a state variable should be controlled for being in appropriate range, the length of control (review) intervals is taken to be constant. In such systems, when the cost of reviews and out-of-range values of the state variable are considerable, this method may not be optimal. In this paper we let the length of review intervals to be variable during each operating cycl...

Poverty Reduction Strategy Papers represent both a primary policy device of international development institutions, and an instance of a wider international convergence of public policy around global integration and social inclusion. Charting the emergence of these approaches, this paper argues that this convergence has a number of structural predilections which favour the technical and juridic...

Pedestrian areas are a type of urban public space, nowadays because of the serious consequencesof car-dependency and ignoring pedestrian needs, a consensus on the importance of walking and the necessity forplanning for pedestrians movement has been formed among urban designers, planners and people. The concernsabout human health and movement in city create a new trend in contemporary urbanism, ...

in the sector of electricity production, the existence of investment resources limitation and environmental factors are the main factors that influence this process. the reduction of costs and the destructive impacts of environmental have been always mentioned by specialists. consequently, the drasticality of the environmental protection and the electric-energy production lead to focus on solar...