We analyze a model of repeated bilateral trade with moral hazard, where the quality of goods received can differ from the quality despatched due to deterioration during transportation. Since the sender does not observe the quality of good received and the receiver does not observe the quality...

We study the evolution of prices in a symmetric duopoly where firms are uncertain about the degree of product differentiation. Customers sometimes perceive the products as close substitutes, sometimes as highly differentiated. Firms learn about their competitive environment from the quantities...

This note considers the problem of estimating the marginal products of offensive events towards a baseball team's objective of scoring runs. Regression techniques on official statistics give a positive marginal product for a stolen base attempt, which is inconsistent with the theory of mixed...