This paper surveys economic models where cooperation arises in the workplace because individuals' utility functions involve a concern for others (altruism) or a desire to respond to like with like (reciprocity). It also discusses empirical evidence which bears on the relevance of these theories....

In public discussions of policy, evidence that import-competing sectors earn low or falling incomes is often used to argue for protection. This paper rationalizes the apparent effectiveness of this argument in both direct and indirect democracies. In direct democracies, a small degree of voter...

This paper presents a goal-oriented model of political participation based on two psychological assumptions. The first is that people are more altruistic towards individuals that agree with them and the second is that people’s well being rises when other people share their personal opinions....

This paper studies a model of random technical progress where technology diffuses at realistically slow rates. It fits smooth trends to the sum of GDP series generated by this model and series representing transitory, or cyclical, fluctuations. Detrended GDP is then largely unrelated to...