In many applications, assumptions about the log-concavity of a probability distribution allow just enough special structure to yield a workable theory. This paper catalogs a series of theorems relating log-concavity and/or log-convexity of probability density functions, distribution functions,...

In most times and places, women on average marry men who are older than themselves. We propose a partial explanation for this difference and for why it is diminishing. In a society where the economic roles of males are more varied and specialized than the roles of females, it may be that the...

This paper presents an evolutionary game theoretic analysis of the dynamics of a population of prisoners' dilemma players where the probability of encountering an cooperator is higher for cooperators than for noncooperators. Examples from biological and cultural evolution are presented. There is...

This paper explores the evolutionary biology of cooperation between relatives playing asymmetric games.

This paper studies the evolutionary game theory of parent-offspring conflict. It revisits a question posed by Gary Becker in economics and Richard Alexander in biology, namely "when do children act in accord with the reproductive interests of their parents?"

This paper seeks useful conditions relating individual preferences to willingness to support specific governmental tax-expenditure proposals. This discussion follows Wicksell in considering only tax-expenditure proposals that specifically tie expenditures to taxes that finance them.