In this paper we examine whether a generalized version of Flam and Helpman's (1987) model of vertical differentiation can reconcile three facts. One, countries import only a subset of available varieties. Two, import prices vary across exporters within narrow product categories. Three, US growth...

We examine a generalized version of Flam and Helpmanacirc;euro;TMs (1987) model of vertical differentiation that maps cross-country differences in income distributions to variations in import variety and price distributions. The theoretical predictions are examined and confirmed using micro data...

We examine a generalized version of Flam and Helpman’s (1987) model of vertical differentiation that maps cross-country differences in income distributions to variations in import variety and price distributions. The theoretical predictions are examined and confirmed using micro data on...

During the past two centuries, major technological breakthroughs such as the steam engine and electricity have acted as the catalysts for growth and have resulted in a marked increase in material well-being. The dominant technology today - information and communication technology (ICT) - does...

We develop a multi-country general equilibrium model with structural change to investigate the factors affecting the global changes in the skill premium between 1997 and 2007. Trade and technological change increase the skill premium by inducing reallocations to skill-intensive sectors. We apply...