Most of the incomplete contracting literature assumes courts of law perfectly distinguish verifiable from nonverifiable variables and that only claims related to the former can be brought to courts. We consider a more realistic enforcement technology: Parties are able to sign "vague contracts"...

We analyze the effect of introducing a minimum mandatory health insurance plan in a segmented market in which high risks are affiliated to the public insurer and low risks to the private ones (market segmentation is endogenously obtained in our model). We assume both types of insurers must...

This paper uses a model of strategic interaction among firms – that set discriminatory and nonlinear prices – together with public information on prices of the plans marketed by the three major mobile phone companies, to assess the extent to which on-net and off-net price differentials in...

We propose a structural method for estimating the revenue losses associated with bidding rings in symmetric and asymmetric first-price auctions. It is based on the structural analysis of auction data and is consistent with antitrust damage assessment methodologies: we build a but-for...

We show how collusive outcomes may occur in equilibrium in a one-period competitive insurance market characterized by adverse selection. We build on the Inderst and Wambach (2001) model and assume that insurees must pay a minimum premium, which is a common feature in many health systems. In this...

In this letter we show evidence that the introduction of an electronic platform in the Chilean annuity market in 2004 exacerbated adverse selection. Male annuitants who retired after 2004 live around two years longer than non-annuitants, while before the difference was smaller or non...