current literatures on urban parks and green spaces showed that people’s preference for visiting urban parks in various group users is different. people visit parks for various motives and activities, leading to several patterns of park usability. however, the patterns in urban park use in majority of iran cities are not yet known. this study presented the preference for activity in urban parks...

technical efficiency of different sectors is important for economic policy making purposes. this study considering regions as independent decision-making units, measures technical efficiency of industrial sector for every region of the country and then examines its determinant factors.generally influential factors of efficiency are classified in two main groups. first group includes the basic e...

In his Presidential Address to the European Economic Association, Tony Atkinson introduced the idea of a “Charitable Conservatism” position in public policy, which “exhibits a degree of concern for the poor, but this is the limit of the redistributional concern and there is indifference with respect to transfers above the poverty line.” This contrasts with the perspective of poverty indices, wh...

It is shown that the renormalization group method does not necessarily eliminate all secular terms in perturbation series to partial differential equations and a functional subspace of renormalizable secular solutions corresponds to a choice of scales of independent variables in the reductive perturbation method. Recently a novel method based on the perturbative renormalization group theory has...

This contribution presents results of applying a PSS (Product/Service System) design method to two cases in industry – one from manufacturing industry and another from service industry. The method is a structured and comprehensive design method that the author’s group has developed and is now called SPIPS. The method is shown effective to support designers with derive relevant improvement solut...