In this paperwe explore howinnovation and structural change affected economic development in the long run, by which we mean a period such as the one between the industrial revolution and the present. We separate the period since the industrial revolution into two sub periods, which we call...

We explore the relationship between export variety and economic development, using data on OECD countries between 1964 and 2003. We show that structural change in the world economy has a particular arrow of time leading to a growing variety of exports. Distinguishing between related variety...

In this paper we study how the type of structural change leading to increasing output variety was gradually perceived and incorporated into models of economic growth. We trace the evolution of growth models from exclusively macroeconomic ones to the inclusion of the micro and meso levels of...

In this paper the exploration of the interaction mechanisms between the evolution of demand and the overall process of differentiation of the economic system is pursued in a twofold way: (i) the question is asked whether demand indeed saturates and whether such saturation is required for an...

We examine the relationship between the coherence of the knowledge base and the innovative performance of U.S. pharmaceutical firms during the 1990's. We develop measures of the coherence and scope of the firms' knowledge base. Count data regression models show a strong link between these two...