Research Summary
My research is in empirical asset pricing and centers on identifying and interpreting the drivers of asset price movements, distinguishing between risk pricing and non-risk-based frictions. I have a particular interest in price relationships that are unexplained in a classic no-arbitrage setting, which I characterize broadly as liquidity. My approach uses large datasets on quantities and prices to pin down and trace the effects of changes in market structure and investor constraints.
Post-financial crisis policy has differed by market segment, regulatory authority, and timing. There has been no shortage of market structure shifts. Understanding the implications is important for the effectiveness of monetary policy which relies on efficient transmission through asset prices. It is important for regulators to understand the tradeoffs in imposing constraints. It also matters to the perceived risk-reward assessment of investment strategies. My aim is to give policymakers and investors more precise, complete and forward-looking information with which to ground decisions.
Newest Research
Predictable End-of-Month Treasury Returns (Hartley and Schwarz, 2021, Working Paper.)
Relating flows to prices, by investor type, we find that index rebalancing helps to explain the anomalous timing of excess returns. We isolate the demand shock associated with the security's changing role in the Barclay's Aggregate Treasury Government Index. Investors that benchmark performance more closely show relatively greater net purchases of the new index additions.
The effect is not sustained in Treasury security prices, in contrast to the liquidity risk-pricing feedback loop detailed in Musto, Nini, Schwarz (2018). Index demand shocks do not appear to be incorporated into the fundamental value of the relative asset prices. Such shocks may grow as a larger share of investments shifts to passive funds that mechanically track index changes.
Select Publications and Illustrated Results
Notes on Bonds: Illiquidity Feedback During the Financial Crisis (Musto, Nini, and Schwarz, 2018, Review of Financial Studies, 31(8): 2983-3018.)
- Animation: U.S. Treasury yields split into two separate curves (liquid versus illiquid securities) in 2008-2009.
The dynamics of this feedback loop are driven by the interaction between the liquidity risk pricing of investors with heterogeneous security preferences (relating holding horizon to asset liquidity) and intermediaries facing inventory risk. Liquidity feedback between risk pricing and security characteristics gives a possible mechanism for multiple liquidity equilibria.
Mind the Gap: Disentangling Credit and Liquidity in Risk Spreads (Schwarz, 2019, Review of Finance, 23(3): 557-597.)
Using Stocks or Portfolios in Tests of Factor Models (Ang, Liu, and Schwarz, 2020, Journal of Financial and Quantitative Analysis, 55(3): 709-750.)
- Assets are typically grouped into portfolios. The motivation for this is to increase the precision of the factor loading estimates. Since factor loadings are estimated with error, it makes sense that idiosyncratic error should be increasingly diversified away as more estimates are grouped into each portfolio.
- On the other hand, individual test assets give the full cross section of information in the risk premium estimation, increasing efficiency. Also, there is no risk of mis-assigning asssets into portfolios, which could actually worsen bias.