This paper traces the time series (?Growth of Firms?) tradition in the study of market structure and looks at how recent studies on entry and the size distribution of firms have modified thinking in this area.

What economic mechanisms underlie the polarization of the world economy into the 'high wage' industrialized countries and the less developed 'low wage' countries? Should we expect the two groups to converge over time, or to diverge? What economic mechanisms come into play as LDCs attempt to...

This paper reviews the recent literature on game-theoretic models of market structure and their empirical implementation.