This paper studies the role of the host country’s market size in the determination of foreign direct investment (FDI) and trade flows in a general equilibrium model. We propose a simple model with non-homothetic consumer behavior where the distribution of income in the host country implies market segmentation. Facing a proximity-concentration trade-off, in equilibrium ex-ante identical firms ch...

This paper examines the effects of trade openness on the optimal incentives firms provide to their managers (and hence firm-level productivity) in the new heterogeneous-firm trade framework. Export market selection and firm heterogeneity are shown to be the key determinants of firm owners’ optimal choices of the incentive contracts, which affect the cost-reduction efforts of their managers. I s...

I incorporate heterogeneous trade costs into the model of Foellmi, Hepenstrick, and Zweimüller (2013) to analyze another reason for export zeros, additional to arbitrage constraints resulting from per capita income differences. In my model, high trade costs may be responsible for export zeros. The level of tariffs and transportation costs are crucial for patterns of international trade. I find ...

Developing countries typically exhibit small firm size, high dispersion of marginal productivity of factors across firms, and low trade-to-output ratios. They also tend to export particularly less to more distant and smaller markets. To rationalize these facts, this paper develops a flexible, multi-country general equilibrium model of production and trade in which heterogeneous producers face b...

We develop a heterogeneous firm intra-industry trade model in which countries are asymmetric in both technology and size. In our model the productivity gaps and levels across countries are jointly determined by technological asymmetry and trade barriers. By assuming symmetry across countries, Melitz (2003)shows that increased exposure to IIT raise aggregate productivity for all countries via re...

What is the impact of terrorism on trade through higher security at the borders? We set up a theory which shows that the impact goes not only from terrorism to trade. Higher trade with a partner might, in return, increase the probability of terrorism acts by making security measures more costly for total welfare. In order to identify the true impact of terrorism, our theory allows then for a st...

Analyzing genetic differences between closely related populations can be a powerful way to detect recent adaptation. The very large sample size of the UK Biobank is ideal for using population differentiation to detect selection and enables an analysis of the UK population structure at fine resolution. In this study, analyses of 113,851 UK Biobank samples showed that population structure in the ...

the aim this research is the diagnosis of production chains in oil’s regions of iran. for this reason, by using, input-output table for oil’s regions of iran,linkages and production chains are identified. the results of research indicate that although oil and natural gas sectors contain 50 percent of region’s output, but it is not a leading sector. in contrast, manufacturing of species of machi...

the paper examines for the first time the foreign exchange intervention policy in foreign exchange market of iran. and in this framework, the study designs and simulates the foreign exchange intervention model in iran. in the first section, the paper shows that the injection of oil revenues directly to economy and also the absence of potent structure of output are inclusively caused the central...

there are different studies in urban literature on the determinants of urban growth, from the theoretical and empirical points of view. the most completed theoretical model is henderson model (1988, 1997, and 1999), which is tested by some empirical studies. as henderson model shows, the set of national product, specialization and technological progress are the determinants of urban growth. usi...