We show the existence of Nash equilibria in a Bertrand oligopoly price competition game using a possibly asymmetric attraction demand model with convex costs under mild assumptions. We show that the equilibrium is unique and globally stable. To our knowledge, this is the first paper to show the...

A flexible product is a menu of two or more alternative, typically substitute, products offered by a constrained supplier using a sales or booking process. The supplier reserves the right to assign customers who purchase a flexible product to one of the alternatives at a time near the end of the...

The fields of statistics and econometrics have developed powerful methods for testing the validity (specification) of a model based on its fit to underlying data. Unlike statisticians, managers are typically more interested in the performance of a decision rather than the statistical validity of...