The important characteristic of international competition between developed and less developed countries is vertical product differentiation, where firms' quality choices represent strategic decisions. Unlike the previous literature, we allow for a leadership in quality choice and the...

In this paper, we develop a new dynamic model of optimal investments in R&D and manufacturing for a technological leader competing with a large number of identical followers on the market of a technological product. The model is formulated in the form of the infinite time horizon stochastic...

The competition between firms from developed (DC) and less developed countries (LDC) is typically in vertically differentiated products. We consider a model of price competition between DC and LDC firms with quality choice and imitation, and study the effects of ex post tariffs. The government...

This paper analyzes the gradual shift in the technological paradigm of an economy as it approaches the world technology frontier. The model developed in this paper consists of firms which employ skilled workers as an important input in technological advancement, but the novel feature here is the...

This paper presents a dynamic North-South general-equilibrium model where households have non-homothetic preferences. Innovation takes place in a rich North while firms in a poor South imitate products manufactured in the North. Introducing non-homothetic preferences delivers a complete...

This paper presents a dynamic North-South general-equilibrium model where households have non-homothetic preferences. Innovation takes place in a rich North while norms in a poor South imitate products manufactured in North. Introducing non-homothetic preferences delivers a complete...