Shows that uniform TBA pricing induces adverse selection: issuers place lower-quality loans into TBA pools, affecting pool composition and issuance proceeds.
Uses hand-collected index-licensing fee data to quantify index providers’ market power and show how licensing fees contribute to ETF expenses ultimately borne by investors.
Dimensional Fund Advisors Best Paper Award (runner-up), UT Austin AIM Investment Conference
Uses transaction-level MBS data to show primary dealers charge the Federal Reserve systematically worse prices than other clients in large, time-sensitive trades, consistent with dealer market power.
Develops a dealer-intermediation model that formalizes the trade-off between immediacy (inventory risk) and matchmaking (execution delay) and studies its implications for spreads and welfare.
Asset pricing with quantities
These papers develop and test a factor model that links trading quantities (reflecting both demand and information) to asset prices through traded risk factors. They include empirical applications, theoretical foundations, and additional work on dynamics and measurement.
In FX, shows that demand shocks propagate across currencies (and beyond) through a small set of traded FX risk factors.
In U.S. equities, shows that incorporating factor-level trading quantities sharpens the risk-return relation and helps predict returns.
Develops an arbitrage-based foundation for demand effects and derives a factor structure for how quantity shocks move prices in the cross-section.
Extends the theoretical framework to informed order flow, clarifying how information effects interact with demand effects in price impact.
Shows in a dynamic setting that predictable (even uninformed) demand propagates across assets and provides an equilibrium perspective on the factor model of price impact.
Provides a beta-based foundation for aggregating quantities from assets to portfolios and explains when percentage-change elasticities are not meaningful (especially for market-neutral long-short portfolios).
Financial intermediation / market structure
Studies how MBS issuers choose among securitization channels, showing how liquidity constraints and cross-subsidies shape the choice.
Develops and tests the inventory-benefit channel: dealers build inventory to compete for customer flow, lowering liquidity provision costs.