This Paper analyses the impact of R&D subsidies on incumbent firms to introduce new goods. We are especially interested in investigating various consequences of government subsidies for R&D, provided to firms that offer products of different qualities. This study examines the incentives of...

We consider an endogenous growth model that includes international trade in capital goods. The model yields several distinct balanced growth solutions that can be classified using stability under adaptive learning. Some of the equilibria can involve growth rates much higher (or lower) than...

We examine a model of R&D competition and cooperation in the presence of spillovers. Unlike virtually all the literature, however, we treat these spillovers as endogenous and under the control of firms. We show that it is then essential to make a number of distinctions that are ignored in the...

Economists traditionally tackle normative problems by computing optimal policy, ie the one that maximizes a social welfare function. In practice, however, a succession of marginal changes to a limited number of policy instruments are implemented, until no further improvement is feasible. I call...

Do locational fundamentals such as coastlines and rivers determine town locations, or can historical events trap towns in unfavorable locations for centuries? We examine the effects on town locations of the collapse of the Western Roman Empire, which temporarily ended urbanization in Britain,...

In several interesting markets, demand is an increasing function of past sales because of learning, network externalities or fashion. This paper examines entry into such markets. The two key elements of the model are that firms are uncertain about the demand (and learn in a Bayesian fashion) and...

This paper studies the impact of income inequality on fiscal conservatism when an increase in inequality affects the bottom portion of income distribution. It is argued that, contrary to what is generally assumed in the economic literature, inequality will then be associated with less, rather...

This paper describes the gender distribution of research fields chosen by the faculty members in the top 50 Economics departments, according to the rankings available on the Econphd.net website. We document that women are unevenly distributed across fields and test some behavioural implications...