This paper employs a weighted network analysis to study the empirical properties of the world trade web and their evolution over time. We show that most countries are characterized by weak trade links; yet, there exists a group of countries featuring a large number of strong relationships, thus...

We carry out an indirect inference test of two versions of a computable general equilibrium (CGE) model of world trade. One of these, the ‘classical’ model,is well-known as the Heckscher-Ohlin-Samuelson model of world trade, in which countries trade homogeneous products in world markets and...

In this paper we revisit the influential theory of monopolistic competition and optimum product variety as developed by Dixit and Stiglitz (1977) with applications in international trade by Krugman (1979,1980), by modeling fixed and variable costs of production in terms of underlying use of...

Ricardian trade theory was based on the cost of labor at a time when grain and other consumer goods accounted for most subsistence spending. But today's budgets are dominated by payments to the finance, insurance, and real estate (FIRE) sector and to newly privatized monopolies. This has made...

In this paper, we present for the first time a qualitative and quantitative comparison between trade in services and trade in goods at firm level for the same country. We focus first on static features of trade such as participation rates, firms' characteristics, heterogeneity, concentration and...

A growing body of literature in the field of international trade highlights the increasing importance of the time delays associated with transporting goods over long distances and the differing effect that such delays have on traded goods that exhibit diverse degrees of time-sensitivity. This...

A striking pattern in transaction-level data is the concentration of international shipments in the hands of a few large firms. One common feature of dominating high-performance firms is that they produce multiple products and ship them to many destinations. Motivated by the emergence of highly...

The emphasis of international trade theories shifted in the last forty years, from comparative advantage, to scale economies and product differentiation. More recently, the “new” new trade theories have stressed the role of firm heterogeneity, which has led to a renewed interest on the study...

We develop a dynamic multi-country trade model with foreign direct investment (FDI) in the form of non-rival technology capital. The model nests structural gravity subsystems for FDI and trade, with accumulation/decumulation of phyisical and technology capital in transition to the steady state....