Health insurance is increasingly provided through managed competition, in which subsidies for consumers and risk adjustment for insurers are key market design instruments. We illustrate that subsidies offer two advantages over risk adjustment in markets with adverse selection. They provide...

We offer a theory of how the combination of budget constraints and insurance drives up prices. A natural context for our theory is the health care market, where drug prices can be very high. Our model predicts that monopoly prices for orphan drugs are inversely related to the prevalence up until...