Privacy considerations and their effects on behavior are becoming increasingly important. Yet the extremes of full and no privacy are rarely an option. How much does behavior change with small changes in privacy? Dekel et al. (2023) introduce the concept of privacy elasticity, the responsiveness...

This paper proposes a model for a certification market with an imperfect testing technology. Such a technology only assures that whenever two products are tested the higher quality product is more likely to pass than the lower quality one. When only one certifier with such testing technology is...

Rothschild and Stiglitz (1976) show that there need not exist a competitive equilibrium in markets with adverse selection. Building on their framework we demonstrate that externalities between agents - an agent's utility upon accepting a contract depends on the average type attracted by the...