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...

According to standard economic wisdom, fixed costs should not matter for pricing decisions. However, outside economics, it is widely accepted that firms need to increase their prices after a fixed cost rise. In this note, we show that a liquidity-constrained firm that maximizes lifetime profits...