We study fintech entry and how it affects competition, investment, and welfare in a spatial model. We find that fintechs with inferior monitoring efficiency can successfully enter because of their superior flexibility in pricing. It follows that fintech borrowers are...

We study how information technology (IT) affects lender competition, entrepreneurs’ investment, and welfare in a spatial model. The effects of an IT improvement depend on whether it weakens the influence of lender–borrower distance on monitoring costs. If it does, it...

We examine the effects of overlapping ownership among existing firms deciding whether to enter a product market. We show that in most cases—and especially when overlapping ownership is already widespread, an increase in the extent of overlapping ownership will harm...

Will arbitrage capital flow into markets experiencing shocks, mitigating adverse effects on price efficiency? Not necessarily. In a dynamic model with privately informed capital-constrained arbitrageurs, price efficiency plays a dual role, determining both the profitability of new arbitrage and the...

We study the optimal execution problem in a principal-agent setting. A client contracts to purchase from a dealer. The dealer hedges, buying from the market, creating temporary and permanent price impact. The client chooses a contract, which specifies payment as...

When seeking to trade in over-the-counter markets, institutional investors typically restrict both the number of potential counterparties they contact and the information they disclose (e.g., by requesting two-sided rather than one-sided quotes). We rationalize these important facts in a model...