Azevedo and Gottlieb [2017] (AG) define a notion of equilibrium that always exists in the Rothschild and Stiglitz [1976] (RS) model of competitive insurance markets, provided costs are bounded. However, equilibrium predictions are sensitive to assumptions made about the upper bound of cost:...

Abstract We develop a tractable model of competitive insurance markets with a continuum of types and exogenous restrictions on the set of allowed contracts. Our model nests, as special cases, the market for lemons of Akerlof (1970) and the unrestricted contracts setting of Rothschild and...