We study markets for sensitive personal information. An agent wants to communicate with another party but any revealed information can be intercepted and sold to a third party whose reaction harms the agent. The market for information induces an adverse sorting effect, allocating the information...

In Spence's (1973) signaling by education model and in many of its extensions, firms can only infer workers' productivities from their education choices. In reality, firms also use sophisticated pre-employment auditing to learn workers' productivities. We characterize the trade-offs between...

We study markets for sensitive personal information. An agent wants to communicate with another party but any revealed information can be intercepted and sold to a third party whose reaction harms the agent. The market for information induces an adverse sorting effect, allocating the information...

We consider a monopolistic certifier selling certification services to a partially privately informed seller. The certifier can enable the seller to disclose her private information publicly, as well as gather additional market information about the good's quality publicly. We show that the...

Should the constitution of a federation allow for peaceful secession? Constitutionally defined secession rules are optimal ex post if the federation breaks down. However, they may be suboptimal ex ante if the member countries receive a benefit from the perceived long-term stability of the...

This paper studies mechanism design under the level-k solution concept. The first result gives a general necessary condition for a social choice rule to be level-k implementable. In some environments, this necessary condition is equivalent to Bayesian incentive compatibility, making level-k...

We consider a multi-dimensional procurement problem in which sellers have private information about their costs and about a possible design flaw. The information about the design flaw is necessarily correlated. We solve for the optimal Bayesian procurement mechanism that implements the efficient...