the aim of this study is to survey the relationship between total quality management and customer satisfaction. in this field research, we have used the standard questionnaire of fuentes et at (2004). the city of sanandaj is the statistical study of manufacturing companies and the statistical society, 135 managers and employees of the centers were randomly selected. in order to examining the re...

due to urbanization and consequent environmental problems in iran, many people have been interested in improving the weather quality. lack of information about health risks as a result of pollution is a big obstacle which stops policy-making in this regard. the present study examines the type of relationship between low air quality and tehran citizens’ willingness to pay in order to improve wea...

Abstract The current study aims to investigate the relationship between Iran’s Targeted Subsidies Plan and the stock returns of listed companies on the Tehran Stock Exchange (TSE). Stock returns is obtained from the indices of three industries: pharmaceuticals, chemicals, and machinery and equipment. Moreover, the present research uses gold price and dollar price as control variables. The Targe...

This article examines the relationships between interaction (product) terms and curvilinear (quadratic) terms in regression models in which the independent variables are correlated. The author uses 2 substantive examples to demonstrate the following outcomes: (a) If the appropriate quadratic terms are not added to the estimated model, then the observed interaction may indicate a synergistic (of...