In this dissertation I examine a set of crucial topics in the political economy of international trade, with an emphasis on firm-level heterogeneity. The first chapter is an empirical study of the new trade theories in which firm heterogeneity and trade costs play central roles in shaping the...

In this paper we study the determinants of the factor content of the CEE agricultural trade. Examining empirically three hypothesis, which relate cross-country differences in technology, relative factor abundance and transaction costs and market imperfections to the factor content of trade, we...

This paper studies the dynamics of endogenous business cycles and exchange rate volatility in a small open economy. Without market imperfections, domestic price and wage adjustments respond sluggishly to disequilibrium situations on real domestic markets while prices on international capital...

Las economías emergentes con metas de inflación (MI) se enfrentan a un dilema entre cumplir las condiciones teóricas de una «MI estricta», lo que implica un tipo de cambio totalmente flexible, o seguir una gestión más activa de su moneda («MI flexible»), lo que supone implementar...

Many central banks actively intervene in the foreign exchange (forex) market, although there is no consensus on its impact on the exchange rate level and volatility. We analyze the effects of daily forex interventions in four Latin American countries with infl ation targets —namely, Chile,...

Recently gravity trade models are applied to disaggregated trade data. Here manyzeros are characteristic. In the presence of excess zeros usual Poisson Pseudo MaximumLikelihood (PPML) is still consistent, the variance covariance matrix howeveris invalid. Correct economic interpretation however...

Recently gravity trade models are applied to disaggregated trade data. Here many zeros arecharacteristic. In the presence of excess zeros usual Poisson Pseudo Maximum Likelihood(PPML) is still consistent, the variance covariance matrix however is invalid. Correcteconomic interpretation however...

In this study the case of olive oil imports of Germany is examined since olive oil is a traditional Mediterranean commodity and Germany is the biggest importer in the EU. A gravity model has been employed so as to analyse those factors that explain the German imports of olive oil that were...

Uma melhoria da infra-estrutura e da logística, ao integrar a produção e os negócios entre as diferentes regiões ou países, reduz os custos do comércio e promove a riqueza. No entanto, as análises sobre o relacionamento da infra-estrutura com o comércio internacional tem tido muito mais...

In this paper, we estimate a gravity equation properly accounting for omitted exporter and importer’s overall trade resistance, through country yearly dummies for exporter and importer countries. We find that the omission of time varying multilateral trade resistance terms in the estimation of...