Strategic Certification and Provision of Quality

We study the effect of the presence of a certification intermediary in an environment where information asymmetries are particularly severe. The intermediary improves the information that buyers have about quality. This in turn increases the incentives that the seller has to provide high-quality goods. Efficiency is increased by the presence of the intermediary, but quality is underprovided in equilibrium relative to full information. The intermediary can implement the optimal policy in many ways. The amount of information revealed ranges from full disclosure to partial, noisy disclosure.     

Efficient Sorting in a Dynamic Adverse-Selection Model

We discuss a class of markets for durable goods where efficiency (or approximate efficiency) is obtained despite the presence of information asymmetries. In the model, the number of times a good has changed hands (the vintage of the good) is an accurate signal of its quality, each consumer self-selects into obtaining the vintage that the social planner would have assigned to her, and consumers' equilibrium trading behaviour in secondary markets is not subject to adverse selection. We show that producers have the incentive to choose contracts that lead to the efficient allocation, and to supply the efficient output. We also provide a contrast between leasing contracts, resale contracts, and different kinds of rental contracts. Resale contracts do not lead to the efficient allocation. A specific kind of rental contract provides the appropriate incentives to consumers.     

Budget Deficits and Redistributive Politics

This paper proposes a new view of the forces in the political process thatcause governments to accumulate debt. The analysis builds on a model of redistributive politics that, contrary to median voter models, does not restrict the set of policies that politicians can propose. I show that deficits occur even in an environment where voters (and periods) are homogeneous. This is an environment where previous political theories of debt would predict budget balance. In the model deficits are a way for candidates to better target promises to voters and are therefore used as tools of redistributive politics. The main contribution of the analysis is to show that the same forces that push candidates to redistribute resources across voters to pursue political advantage are forces that generate budget deficits.