Highly sensitive, selective, rapid and economical Electroanalytical technique, Differential Pulse Polorography is developed for the determination of cobalt using newly synthesized complexing agent, 4-2-hydroxy phenyl ethaminodiol benzene-1,3-diol (4-2-HPEDB-1,3,D). At pH 5.5 a calibration graph was constructed in the concentration range of 0.1 to 200 g/mL with correlation coefficient 0.9998. T...

Recorded prices are known to diverge from their “efficient” values due to the presence of market microstructure contaminations. The microstructure noise creates a dichotomy in the model-free estimation of integrated volatility. While it is theoretically necessary to sum squared returns that are computed over very small intervals to better indentify the underlying volatility over a period, the s...

we describe a simple model that fits well with iranian economy, and extends a methodology which chary at el. (2007) demonstrated. in addition to four traditional wedges, we introduce additional trade wedge. we then evaluate the contribution of these wedges to the fluctuations in iran during last three years. because of international sanction, trading cost increases, and firms have difficulty to...

trips agreement (trade-related aspects of intellectual property rights) is one of the binding agreements of world trade organization, upon the cases originate from that agreement also heared at dispute settlement understanding. one different character of trips agreement is expressing minimum standards. the diverse explanation of its articles may lead to some controversy between members of world...

We present a theory of why some countries negotiate trade agreements during economic downturns. We argue that political leaders can gain from such agreements because of the signals they send to their publics. Publics are less likely to blame leaders for bad economic conditions when they have implemented sound economic policies, such as signing and implementing agreements designed to liberalize ...

extension of trade liberalization in countries is cause to increasing amount of goods in different sectors. exploit of global trade by increasing competitive power was regarded by researchers and policymakers in different countries. whereas abundance of production factor is one of the agent that makes advantage and qualitative land and labor force are two abundance production factors in agricul...

Iran-China relations are deeply rooted in history and have been enhanced recently with bilateral cooperation in the areas of energy, arms sales, trade, political cooperation and cultural ties. The objective of this paper is to analyze the role of international outsourcing in form of trading intermediate products on bilateral trade relations between Iran and China. As an empirical work, we h...

We show how a Metric Affine theory of Dilaton gravity can be reduced to an effective Riemannian Dilaton gravity model. A simple generalization of the Obukhov-Tucker-Wang theorem to Dilaton gravity is then presented. 04.20.-q, 04.40.-b, 04.50.+h, 04.62.+v [email protected]

Drawing on a new and comprehensive measure of logistics quality, our gravity model suggests logistics in the exporting and partner-country can have an important impact on bilateral exports. A one standard deviation improvement in the exporter’s logistics quality, which for example would improve Gabon to the level of Guinea, would raise exports by almost 60%. Landlocked countries’ exports depend...