The comparative statics of optimal hierarchies / Switching costs and competition in retirement investment / Strategic performance of deferred acceptance in dynamic matching / Multiple lenders, strategic default, and covenants / Strategic ignorance in sequential procurement / Behavioral economics and the atheoretical style / Partners or strangers? Cooperatio, monetary trade, and the choice of scale of interaction / Policies in relational contracts / Cream skimming and information design in matching markets / Who benefits from information disclosure? The case of retail gasoline.