afghanistan as the largest producer of drug in the world, after the events of september 11, 2001, and attack of international forces following the resolution of the un, has been increasingly important in international politics. the range of effects from illigal drug trade in afghanistan and the countries on the way of transition and trafficking target market, has caused special attention paid t...

this study examins effects of trade liberalization on the wage inequality between urban and rural labor by utilizing the data of micro-level households’ income and expenditures surveys and trade statistics over 2001-2011. the analysis is carried based on the heckscher–ohlin’s theory in international trade and baker’s taste discrimination theory at firms. we use quantile regression and ordinary ...

UNLABELLED Nondestructive SR-based microCT and nano-CT methods have been designed for 3D quantification and morphometric analysis of ultrastructural phenotypes within murine cortical bone, namely the canal network and the osteocyte lacunar system. Results in two different mouse strains, C57BL/6J-Ghrhr(lit)/J and C3.B6-Ghrhr(lit)/J, showed that the cannular and lacunar morphometry and their bone...

We explore the role of ISO 14001 certification in stimulating increased exports for certified firms. The rationale study is that conveys an important market signal firm's production process adheres to internationally accepted standards environmental quality. That is, perceived credibility lowers informational barriers about attributes products, especially foreign markets, boosting exports. put ...

Tourism is a multidimensional economic activity that has an interaction with the environment. On one hand, environmental resources provide the raw material for tourism, while on the other, tourism imposes a variety of negative and positive impacts (wanted or unwanted) on the environment through the creation of various by-products. The main purpose of the current study is to investigate the rela...

economic sanctions appear to be a common feature of political interactions between states. economic sanctions have become increasingly important as alternative to military conflict since the last decade of twentieth century. this paper provides, through a gravity model, an estimation of the impact of economic sanctions on bilateral trade flows between iran and its major trading partners during ...