National authorities are presently not willing to install a supranational authority vested with the competencies required to internalize global environmental externalities. Therefore we adopt a dynamic framework of two economies (i.e. Europe and rest of world) and analyze their strategic...

The diversity of social interaction within economic communities affects productivity and growth, and is itself shaped by economic conditions. These reciprocal effects raise the possibility of multiple equilibria, of setting a socially polarized economy stagnating in poverty on a new path of...

We develop a parsimonious general equilibrium model where agents allocate time across three activities: production, trade, and leisure. Leisure includes time spent socializing, which economizes transaction costs. Our framework yields multiple equilibria in terms of the number of social ties and...