Satiation of need is generally ignored by growth theory. I study a model where consumers may be satiated in any given good but new goods may be introduced. A social planner will never elect a trajectory with long-run satiation. Instead, he will introduce enough new goods to avoid such a...

The purpose of this paper is to explain the main social and economic facts concerning obesity in a way that substantially improves upon existing economic theory. In contrast to existing theory, a number of recent health science writers have explained persuasively that weight gain or loss is not...