We have demonstrated that when providers of health insurance are perceived to be differentiated by consumers, circumstances may arise under which they find it advantageous to restrict the set of health-care providers that they approve to their customers. Even if all health-care providers are...

Given that Information Technology (IT) security has emerged as an important issue in the last few years, the subject of security information sharing among firms, as a tool to minimize security breaches, has gained the interest of practitioners and academics. To promote the disclosure and sharing...

This article develops an oligopoly model where both prices and quality levels are determined at the equilibrium. Multiple symmetric equilibria arise when the distribution of consumers according to their willingness to pay is not uniform and more than one firm participates in the market. With a...

When a firm contracts with a privately informed retailer, vertical restraints may be insufficient to eliminate distortions arising from having to induce truthful reporting. With franchise fee contracts (which are equivalent to any other "quantity forcing" contract), two distortions arise. The...