Despite extensive use of bargaining models in economics and despite Becker's insistence on the importance of altruism in families, the theoretical literature on bargaining ignores altruism and assumes that everyone is an egoist. This paper shows that incorporating altruism into cooperative...

This chapter surveys a sizable and growing literature on coalition formation. We refer to theories in which one or more groups of agents (“coalitionsâ€) deliberately get together to jointly determine within-group actions, while interacting noncooperatively across groups. The chapter...

This paper considers marriage problems, roommate problems with nonempty core, and college admissions problems with responsive preferences. All stochastically stable matchings are shown to be contained in the set of matchings which are most robust to one-shot deviation.

The deferred acceptance algorithm proposed by Gale and Shapley (1962) has had a profound influence on market design, both directly, by being adapted into practical matching mechanisms, and, indirectly, by raising new theoretical questions. Deferred acceptance algorithms are at the basis of a...

We delineate the various ways in which rights to environmental and other resources can be assigned to individuals or groups. We then examine models of individual and group interactions, drawing out their implications for the ways in which resources will be utilized and managed under various...

The question of the role of statutory law in social environments permeated by custom and traditional norms is particularly important when the state law aims to correct social inequalities embedded in the custom. The conventional view is that modern law often fails to take root in custom-driven...

This chapter surveys a sizable and growing literature on coalition formation. We refer to theories in which one or more groups of agents (“coalitions”) deliberately get together to jointly determine within-group actions, while interacting noncooperatively across groups. The chapter describes...

We investigate the outcome of bargaining when a player’s pay-off from agreement is risky. We find that a risk-averse player typically increases his equilibrium receipts when his pay-off is made risky. This is because the presence of risk makes individuals behave 'more patiently' in bargaining....

We develop a model of wage determination with private information, in which the union has the option to delegate the wage bargaining to either surplus-maximizing delegates or to wage-maximizing delegates (such as senior union members). We show that the wage outcome in case of surplus-maximizing...

An evolutionary style model of recontracting is given which guarantees convergence to core allocations of an underlying cooperative game. Unlike its predecessors in the evolution/learning literature, this is achieved without assumptions of convexity of the characteristic function or a reliance...