nowadays, the machinery dependent life makes the people take refuge in natural recreational places. therefore, evaluating the recreational value of natural promenades has great importance to lead to more protection. in this research, economic valuation of sorkheh hesar national park, and protected area of geno were computed, and socio-economic factors compared in each area. geno protected area ...

consumers’ willingness to pay for nonmarket commodities such as wildlife, quality of the environment and forest services (including timber production, water conservation, soil conservation, oxygen supply, carbon sequestration, recreation services and wildlife preservation) is a measure of value of these resources. in recent years the contingent valuation has been used to determine this and othe...

Farmer in different parts of Ethiopia uses a similar type fertilizer and amounts that are below the crop requirements, even low soil fertility which limits production general. To solve over-blanket application over agroecology Ethiopian Soil Information System (EthioSIS) mapped recommended types for specific location. A NPSB where Beko village, but rate this was not studied so far. So, field ex...

This study was conducted in Kathmandu district to perform comparative economic analysis of small and commercial goat enterprises. In the average annual return from large enterprises found be six times greater than that The fixed cost one tenth total variable comparatively less enterprises, which is more five less. per unit for also twenty-five hundred gross profit year enterprise around sixty t...

abstract objective: in health economics, one of the important methods of economic evaluation is cost-effectiveness analysis. the usual procedure in this method is to consider effectiveness of disability-adjusted life years (dalys) as a measure criterion. material and methods: this was a cross sectional study of economic assessment type or cost-effectiveness. all over 30 years old population of ...

the aims of this study were to assess the energy and economic flows of biodiesel production from olive pomace oil using transesterification method with ultrasound waves. for this purpose biodiesel production from this feedstock were examined through a life-cycle process with considering five main stages of agricultural production, transportation, olive oil extraction, pomace oil extraction and ...

Engineering economy set of mathematical techniques for economic evaluation of investment projects that present value and internal rate of return method are among the most important of these methods. Managers and investors have many reasons to using internal rate of return greater willingness shown. This is while the serious problems associated with using internal rate of return method. In recen...