Geoffrey Heal

We study collective choice when individuals have heterogeneous discounted utilitarian preferences. Two attractive properties of intertemporal preferences are indistinguishable for individuals, but have dramatically different implications for collective choice. Time … read more »

Climate change is fundamentally an `out-of-sample’ problem – our available information does not tightly constrain predictions of the consequences of rapid increases in greenhouse gas concentrations. Moreover, the fact that … read more »

Intertemporal conflicts occur when a group of agents with heterogeneous time preferences must make a collective decision about how to manage a common asset. How should this be done? We … read more »