These original essays focus on a wide range of topics related to Frank Hahn's distinguished work in economics. Ranging from market analysis and game theory to the microeconomic foundations of macroeconomics and from equilibrium and optimality with missing markets to economics and society, they...

Large quantities of software, ranging from operating systems to web servers to games, are now available as “open source software” or “free software”. In many cases, this software is backed by large profit seeking corporations such as IBM. Traditional economic analysis is used to identify...

A contingent contract in a transferable utility game under uncertainty specifies an outcome for each possible state. It is assumed that coalitions evaluate these contracts by considering the minimal possible excesses. A main question of the paper concerns the existence and characterization of...

This paper takes a new look at the classic concession game. It argues that exit from an asymmetric war of attrition is likely to be instant. Selecting a unique equilibrium using a "craziness" pertubation device, it finds a notion of stochastic strength determines the outcome, with a...