We develop an overlapping generations model, where firms (as consumers) have a two-period life, investing in R&D during the first period and competing in the product market in the second period. The number of firms is endogenously determined and the set of successful firms by a Bernoullian...

This paper constructs a growth model in which monopolistically competing firms choose the characteristic of their own product from an unbounded product space. While consumers wish to satisfy various needs by purchasing a diverse range of goods, production costs are lower for those goods that are...

In this paper I present an endogenous growth model where the engine of growth is in-house R&D performed by high-tech firms. I model knowledge (patent) licensing among high-tech firms. I show that if there is knowledge licensing, high-tech firms innovate more and economic growth is higher than in...

Existing theories that emphasize the significance of financial intermediation for economic development have not addressed two important empirical facts: (i) the relationship between financial and real activities depends crucially on the stage of development, and (ii) financial and industrial...

This chapter reviews and integrates much of what has been learned on the processes of technological evolution, their main features, and their effects on the evolution of industries. First, we map and integrate the various pieces of evidence concerning the nature and structure of technological...

We analyze the relative growth performance of open economies in a two-country model where different endowments of labor and a natural resource generate asymmetric trade. A resource-rich economy trades resource-based intermediates for final manufacturing goods produced by a resource-poor economy....

This paper analyzes how changing the expected length of intellectual property right (IPR) protection affects growth and the welfare of rich and poor consumers. The analysis is based on a product-variety model with non-homothetic preferences and endogenous markups in which, in accordance with...

This paper develops a quality-ladder model of endogenous growth to study the interplay between in-house R&D and marketing expenditure. Although promotional activity is modelled as purely wasteful competition among firms for attention, it unambiguously fosters innovation activity of firms, and...