We present both theory and evidence that increased competition may decrease rather than increase consumer welfare in subprime credit markets. We present a model of lending markets with imperfect competition, adverse selection and costly lender screening. In more competitive markets, lenders have...

We present both theory and evidence that increased competition may decrease rather than increase consumer welfare in subprime credit markets. We present a model of lending markets with imperfect competition, adverse selection and costly lender screening. In more competitive markets, lenders have...

This paper studies manipulation in cash-settled derivative contract markets. When traders hedge factor risk using cash-settled derivatives, which are settled based on the price of a spot good, traders can manipulate settlement prices by trading the spot good. In equilibrium, manipulation can...

How do cryptocurrency exchanges compete with each other? We show that small and large crypto exchanges appear to be complements, rather than substitutes, as traditional oligopoly theory would predict. When large exchanges list new tokens, trade volumes on small exchanges increase, and small...

Has the United States economy become less competitive in recent decades? One might think so based on a body of research that has rapidly become influential for antitrust policy. We explain that the empirical evidence relating to concentration trends, markup trends, and the effects of mergers...