Changes in the extent of multi-market contact (MMC) between firms often affect market outcomes – quantities and prices. We show that a strategic but purely competitive effect of changes in MMC can change the quantity provided in a market by a firm by as much as 50%, and the prices a firm sets...

Most non-elderly Americans purchase insurance through their employers, which sponsor a limited number of plans. We estimate how much employees would be willing to pay for the right to apply their employer subsidy to the plan of their choosing. We make use of a proprietary dataset containing...