conclusions since traffic noise pollution is a high cost for tabriz residents, extensive preventive measures and comprehensive control programs by managers and city authorities as unavoidable necessities are suggested. the measures have to be taken by urban managers and decision-makers to reduce the health impact of traffic noise on tabriz residents. background noise pollution is one of the mos...

objective: the main objective of this research was the economic valuation of public library services using the contingent valuation. although, estimating the average willingness to pay for public library service, demographics on the willingness to pay, and economic valuation and pricing public library services were other objectives that investigated in this study. methodology: explanatory varia...

abstract in this study, willingness to pay of 180 wheat farmers in khorasan razavi province to remove weeds in different options and different growth stages in 2008 through logarithmic regression was investigated. the results indicated that farmer's total annual income, being perennial of weeds and dummy variables percent of removing weeds in growth different stages, had positive and significan...

BACKGROUND AND AIM: Estimation of need and demand for orthodontic treatment is important for both health professionals and health policymakers. Need assessment is traditionally done using experts’ opinions; however, patient-centered evaluation can provide a bigger picture of patient’s esthetic and psychological needs. The willingness to pay (WTP) technique is a potentially valid tool for assess...

the proposition that natural areas need protection from the destructive actions of people iswidely accepted. this paper examines iran’s e-society attitudes and capital towards biodiversity conservationand evaluates economically iran’s national parks (nps). 2,121 respondents answered an online questionnaire conducted in summer 2012. the majority of respondents had visited one of iran’s nps. almo...