First chapter aims to quantify the role of trade in capital goods incross country income differences. I construct a multi-country general equilibriummodel of trade along the line of Eaton and Kortum (2002) and Alvarezand Lucas (2007) and introduce trade in capital goods and capital...

Growth and imports are correlated across countries, but the mechanisms underlying this relationship are not well understood. I develop a multi-country model in which imports and growth are connected by technological innovations and their international diffusion through trade. Fitting the model...

We consider a semi endogenous R&D growth model with international trade, firm heterogeneity, and local knowledge spillover in a closed economy and international knowledge spillover in a symmetric two country economy. We show that by opening trade R&D difficulty (the number of varieties produced)...

Economic integration in Europe has had ambiguous effects on industry concentration. The literature has proposed various explanations of the empirical findings. The present paper provides an additional theoretical argument. We show that in a world of monopolistic competition, integration in it...

A correct parametric approximation of the productivity distribution is essential to calculate Gains From Trade (GFT) in heterogeneous firms models. This paper argues that heterogeneity in productivity is best captured by Finite Mixture Models (FMMs). FMMs build on the existence of unobserved...

This paper is a discussion of the economic geography of Australia. It provides a history of foreign investment in mining, and discusses several resources booms that shaped the landscape of the continent and the role of governments (state, federal and territory governments) in this process. The...

This paper emphasizes the importance of two sufficient statistics to characterize firm-level heterogeneity in the workhorse heterogeneous firms trade model: the Cumulative Distribution Function (CDF) and the mean of firm-level sales. Contradicting the strong focus on the CDF, a close fit to...

This paper studies how cross-sector strategic trade policy affects wages, country-wide profits, and welfare. I develop a simple model of two-country continuum-of-sectors general oligopolistic equilibrium. Demands are linear and sectors involve one domestic firm competing on quantity with its...

We construct a simple model to demonstrate how the firm-level degree of scale economies (D-SE) is determined when firms make technology choice. In particular, we illustrate the importance of external factors that affect the efficiency of firms' technology choice, such as public knowledge stock,...

This paper quantifies the separate contribution of idiosyncratic productivity and demand growth on aggregate Chinese exports. We develop firm, product, market and year specific measures of productivity and demand. We use these measures to document a number of novel findings that distinguish the...