I study a model of geopolitical organization endogenizing the size of nations, of their public spending and of their degree of openness. The optimal geography may not be a stable equilibrium and the Alesina-Spolaore bias toward too many nations tends to be confirmed. However, multiple equilibria...

The US decision not to ratify the Kyoto Protocol and the recent outcomes of the Bonn and Marrakech Conferences of the Parties drastically reduces the effectiveness of the Kyoto Protocol in controlling GHG emissions. The reason is not only the reduced emission abatement in the US, but also the...

The diffusion of knowledge in the world generates positive externalities if knowledge flows increase the productivity of R&D. Our work analyzes knowledge diffusion and knowledge externalities in generating innovation and in determining productivity. We first estimate the determinants of...

Firms may underinvest in local environmental protection even from the private viewpoint of its owners and employees, but works councils may help mitigate this problem. We show that increases in environmental investments when councils are present could be employee-led, firm-led, or jointly-led....

This paper investigates the impact of the public smoking ban which came into effect in Italy on January 2005 on individual smoking behaviour. Current empirical evidence supports the existence of a negative effect of the Italian ban on smoking prevalence and consumption in the general population....

We model consumer choices for cannabis in a risky environment and determine the supply of cannabis under prohibition and legalization. While introducing a legal market reduces the profits of illegal providers, it increases cannabis consumption. We show that this trade-off can be overcome by...

Peer reviews and rankings today are the backbone of research governance, but recently came under scrutiny. They take explicitly or implicitly agency theory as a theoretical basis. The emerging psychological economics opens a new perspective. As scholarly research is a mainly curiosity driven...

We examine the effects that variations in the international food prices have on democracy and intra-state conflict using panel data for over 120 countries during the period 1970-2007. Our main finding is that in Low Income Countries increases in the international food prices lead to a...

Natural disasters have been a major cause of human suffering. Countries with higher income, lower inequality, lower corruption, and more democratic regimes have been found to experience less casualties from disasters. Government repression, however, could also play a role in disaster...

We examine multinationals optimal entry modes into foreign markets as a function of market size, FDI fixed costs, tariffs and transport costs. Our results highlight why large countries are more likely to attract acquisition investment, while intermediate-sized countries may be served...