Humans are social creatures that interact in a number of different and at least partially independent social settings, such as work, home, social and political organisations, and church. In each setting one has an identity, or set of identities, which one is called upon to achieve. To obtain and...

We present a model in which agents value food, leisure and health, and take into account how their food consumption and leisure affect their health. Drawing insights from behavioral psychology and medical practice, agents face adjustment costs in choosing consumption and leisure. We find that...

Given increasing obesity rates, fingers are often pointed at "big food" and their marketing practices. Restaurant meals are indeed larger than home-cooked meals, and portion sizes have increased. We consider constrained "socially optimal"--rather than decentralized profit-maximizing--portions to...

Actions that affect environmental quality both influence and respond to macroeconomic variables. Further, many environmental and macroeconomic consequences of current actions will have uncompensated effects that outlive the actors. This paper presents an overlapping-generations model of...