Credit contracts are non-exclusive. A string of theoretical papers shows that nonexclusivity generates important negative contractual externalities. Employing a unique dataset, we identify how the contractual externality stemming from the non-exclusivity of credit contracts affects credit...

We introduce a new measure of competition: the elasticity of a firm’s profits with respect to its cost level. A higher value of this profit elasticity (PE) signals more intense competi- tion. Using firm-level data we compare PE with the most popular competition measures such as the price cost...

This paper studies the consequence of an imprecise recall of the price by the consumers in the Bertrand price competition model for a homogeneous good. It is shown that firms can exploit this weakness and charge prices above the competitive price. This markup increases for rougher recall of the...

The liberalization of the electricity sector increases the need for realistic and robust models of the oligopolistic interaction of electricity firms. This paper compares the two most popular models: Cournot and the Supply Function Equilibrium (SFE), and tests which model describes the observed...

This paper introduces a new way to measure competition based on firms' profits.Within a general model, we derive conditions under which this measure is monotone in competition, where competition can be intensified both through a fall in entry barriers and through more aggressive interaction...

We show that competing firms relax overall competition by lowering future barriers to entry.We illustrate our findings in a two-period model with adverse selection where banks strategically commit to disclose borrower information.By doing this, they invite rivals to enter their market.Disclosure...