نتایج جستجو برای: mine and trade

تعداد نتایج: 16843977  

2002
Gerald Willmann Roberto Perotti Giovanni Facchini Peter Neary Horst Raff

Based on the observation that industries are often geographically concentrated, this paper proposes a new political economy model of trade. We associate the sectors of a specific factors model with electoral districts populated by continua of heterogeneous voters who differ in their relative factor endowments. We show how strategic delegation leads each district to elect a representative who is...

Tran Van Hoa

  The paper uses economic and energy data analysis and econometric modeling to study the prospects and challenges of Korea’s 2003 FTA Roadmap (MOFAT 2013) in the form of potential comprehensive partnerships with its major trade and energy partners. It first reviews Korea’s international economic and trade relations in recent years with a focus on its major merchandise export destinations an...

Journal: :CoRR 2014
James Whitacre Sven Schellenberg Antony Iorio

Coal blending is a critically important process in the coal mining industry as it directly influences the number of product tonnes and the total revenue generated by a mine site. Coal blending represents a challenging and complex problem with numerous blending possibilities, multiple constraints and competing objectives. At many mine sites, blending decisions are made using heuristics that have...

2009
Erbo Zhao Guo Liu Dan Luo Xingang Xia Zhangang Han

This paper introduces an agent-based model in which selfinterest intelligent agents are adaptive. Agents can either go to find resources in the environment or mine the resources found. Agents trade information about resources in a market. A biased learning mechanism is introduced to update agents’ capabilities of mining and searching. The learning mechanism plays a vital role in the specializat...

Journal: Desert 2020
A. Rashtian, H.R. Azimzadeh N. Monemi S.H. Jafari

Environmental contaminations resulting from mining operations play an important role in the collapse of ecosystems balance. In order to measure vegetation characteristics and to study soil and plant contamination in rangelands surrounding bauxite mine, a systematic random sampling was done according to physiognomy and homogeneity of vegetation cover. Sampling was performed using a 50-meter tran...

2000
Ana Lúcia Iacono Christopher Rose

The Infostations wireless data network architecture features discontinuous coverage and ultra-high radio rates for burst transfers of information between base and mobile. It has been shown previously that the infostations architecture can greatly increase the capacity of wireless data systems at the expense of increased delivery delay. In this work we explicitly consider the multiple access iss...

A.R. Azadmehr H. Hassani, S. Tabasi

The present work was planned to evaluate the phytoextraction of metal mine tailings, Sarcheshmeh copper mine, SE of Iran, by the endemic plant species Medicago sativa L. (Alfalfa). In this pot experiment, we investigated the effects of seven amendments on the growth of alfalfa and uptaking metals from the mine tailings and stream sediment of tailing dam surface. The mean metal concentrations in...

Journal: :iranian journal of economic studies 2012
tran van hoa

abstract on 6 december 2006, australia and korea announced a joint study on a possible australia-korea free trade agreement (akfta) to promote trade and economic relations between the two countries. the paper provides empirical evidence on the possible gains and their transmission mechanism from this agreement. significantly, it uses a new economic policy modelling approach, the endogenous grav...

2001
Marc-Andreas Muendler

The impact of international trade on domestic growth is revisited in a model with dynamic externalities and static increasing returns to scale. The model embraces features of both classical and new growth and trade theories, allows for learning by doing, and integrates several strains of thought in a general equilibrium with two regions. In contrast to previous work, the model shows that intern...

Today, preferential and free trade agreements play an effective role in expanding trade in goods and services at the international level and as common practice in business planning and facilitating trade. The purpose of this article is to examine the trade and welfare effects of Iranchr('39')s free trade agreement with Turkey, India and Pakistan. For this purpose, using the Computable General E...

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