The Concept of Income in a General Equilibrium

This paper derives a concept of aggregate real income for a competitive economy in general equilibrium consisting of heterogeneous infinitely lived people and relates it to current and future consumption possibilities. An important characteristic of our measure of income, which we call Real Income, is that deflation is carried out using a consumption deflator rather than any price index of output. We suggest that it may be inappropriate to regard capital gains as income. We also present a coherent treatment of the effects of changes to the terms of trade on Real Income and explain the implications of this for resource-exporting economies.     

Endogenous Move Structure and Voluntary Provision of Public Goods: Theory and Experiment

In this paper, we examine voluntary contributions to a public good, embedding Varian's (1994) voluntary contribution game in extended games that allow players to choose the timing of their contributions. We show that predicted outcomes are sensitive to the structure of the extended game, and also to the extent to which players care about payoff inequalities. We then report a laboratory experiment based on these extended games. We find that behavior is similar in the two extended games: subjects avoid the detrimental move order of Varian's model, where a person with a high value of the public good commits to a low contribution, and instead players tend to delay contributions. These results suggest that commitment opportunities may be less damaging to public good provision than previously thought.