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Discussion Paper
Has Liquidity Risk in the Treasury and Equity Markets Increased?
Market participants have argued that market liquidity has deteriorated since the financial crisis. However, inspection of common metrics such as bid-ask spreads, market depth, and price impact do not show pronounced reductions in liquidity compared with precrisis levels. In this post, we argue that recent changes in liquidity conditions may best be described in terms of heightened liquidity risk, as opposed to general declines in liquidity levels. We propose a measure that shows liquidity risk has risen in equity and Treasury markets and discuss some factors behind the increase.
Working Paper
A Tale of Two Option Markets: Pricing Kernels and Volatility Risk
Using prices of both S&P 500 options and recently introduced VIX options, we study asset pricing implications of volatility risk. While pointing out the joint pricing kernel is not identified nonparametrically, we propose model-free estimates of marginal pricing kernels of the market return and volatility conditional on the VIX. We find that the pricing kernel of market return exhibits a decreasing pattern given either a high or low VIX level, whereas the unconditional estimates present a U-shape. Hence, stochastic volatility is the key state variable responsible for the U-shape puzzle ...
Report
The Overnight Drift
This paper documents that U.S. equity returns are large and positive during the opening hours of European markets. These returns are pervasive, economically large, and highly statistically significant. Consistent with models of inventory risk, we demonstrate a strong relationship with order imbalances at the close of the preceding U.S. trading day. Rationalizing unconditionally positive “overnight drift” returns, we uncover an asymmetric reaction to demand shocks: market selloffs generate robust positive overnight reversals, while reversals following market rallies are much more modest. ...
Report
Horizon-Dependent Risk Aversion and the Timing and Pricing of Uncertainty
Inspired by experimental evidence, we amend the recursive utility model to let risk aversion decrease with the temporal horizon. Our pseudo-recursive preferences remain tractable and retain appealing features of the long-run risk framework, notably its success at explaining asset pricing moments. In addition, our model addresses two challenges to the standard model. Calibrating the agents’ preferences to explain the equity premium no longer implies an extreme preference for early resolutions of uncertainty. Horizondependent risk aversion helps resolve key puzzles in finance on the valuation ...
Report
The term structure of the price of variance risk
We empirically investigate the term structure of variance risk pricing and how it varies over time. We estimate the aversion to variance risk in a stochastic-volatility option pricing model separately for options of different maturities and find that variance risk pricing decreases in absolute value with maturity but remains significantly different from zero up to the nine-month horizon. We find consistent non-parametric results using estimates from Sharpe ratios of delta-neutral straddles. We further show that the term structure is downward sloping both during normal times and in times of ...