Using a vertical differentiation model of endogenous growth with stochastic R&D activity, we characterize the optimal patent life-time the government would set in order to maximize economic growth. We show that a finite patent life-time does exist and is unique provided that the expected rate of...

This paper studies the economic determinants of the inter-sectoral allocation of skills within an R&Dbased growth model with human capital accumulation. I find that steady-state growth is driven only by incentives to accumulate skills and is independent of scale effects. In the model imperfect...

This paper overviews the main interactions between product market competition and long run growth.We focus on the first generation of R&D-based growth models and keep distinguished the vertical from the horizontal differentiation approaches. Our main objective is to study why these two branches...

This paper studies the economic determinants of the inter-sectoral allocation of skills within an R&Dbased growth model with human capital accumulation and imperfect competition. Using an aggregateR&D technology displaying constant returns to scale in human capital, I find that steady-state...

This paper studies the long-run consequences of imperfect competition on growth and the sectoral distribution of skills within an R&D-based growth model with human capital accumulation. We find that steady-state growth is driven only by incentives to accumulate skills. In the model imperfect...

This paper overviews the main interactions between product market competition and long-run growth. We start with the first generation of R&D-based growth models and keep distinct the vertical from the horizontal differentiation approaches. Our main objective here is to study why these two...

In this paper, we build a general model of horizontal product innovation and economic development, taking explicitely into account the most relevant insights stemming from the recent literature on this topic. What results from our analysis is that, when innovation is both deterministic and...

We build an expanding product variety endogenous growth model where both human capital and ideas are complements. One peculiarity of the economy under analysis is that in the sectors where both kinds of capital are accumulated no spillover effect does exist. Many insights arise from the model....

Empirical evidence has recently pointed to the lack of any relationship between R&D intensity (variously defined and measured) and economic growth in the post-war period in the United States and other OECD countries. Using a framework that integrates human capital accumulation and purposive...