This paper studies the origins and consequences of international technology gaps. I develop an endogenous growth model where R&D efficiency varies across countries and productivity differences emerge from firm-level technology investments. The theory characterizes how innovation and learning...

This paper investigates Samuelson's (JEP, 2004) argument that technical progress of the trade partner may hurt the home country. We illustrate this prospect in a simple Ricardian model for situations with outward knowledge spillovers. Within this framework Samuelson's Act II effects may occur....

This paper develops a multi-country, general equilibrium, semi endogenous growth model of innovation and trade in which specialization in innovation and production are jointly determined. The distinctive element of the model is the ability of the agents to direct their research efforts to...

This paper investigates Samuelson's (JEP, 2004) argument that technical progress of the trade partner may hurt the home country. We illustrate this prospect in a simple Ricardian model for sitations with outward knowledge spillovers. Within this framework Samuelson's "Act II" effects may occur....

This paper highlights the way in which workers of different age and ability are affected by trade liberalisation. A general-equilibrium model of trade and human-capital is constructed. Individuals differ not only in their endogenous education-level but also in their exogenous age. They can, at...

In this paper we demonstrate that intra-industry trade (or FDI)between identical countries could produce theobserved deterioration in the relative wages of unskilled workers.This involves a model of North-Northintegration through either increased trade flows or increased MNE-based production....

We explore future job creation needs under conditions of demographic, economic, and technological change. First, we estimate the implications for job creation in 2020-2030 of population growth, changes in labor force participation, and the achievement of plausible target unemployment rates,...