We develop a model of international trade with export quality requirements and two dimensions of firm heterogeneity. In addition to "productivity", firms are also heterogeneous in their "caliber" — the ability to produce quality using fewer fixed inputs. Compared to single-attribute models of...

The Linder hypothesis states that countries of similar income per capita should trade more intensely with one another. This hypothesis has attracted substantial research over decades, but the empirical evidence has failed to provide consistent support for it. This paper shows that the reason for...

We provide a graphical illustration of how standard consumer and producer theory can be used to quantify the welfare loss associated with inefficient pricing in insurance markets with selection. We then show how this welfare loss can be estimated empirically using identifying variation in the...

Much of the extensive empirical literature on insurance markets hasfocused on whether adverse selection can be detected. Once detected, however, therehas been little attempt to quantify its welfare cost, or to assess whether and whatpotential government interventions may reduce these costs. To...