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Report
Resurrecting the (C)CAPM: a cross-sectional test when risk premia are time-varying
This paper explores the ability of theoretically based asset pricing models such as the CAPM and the consumption CAPM-referred to jointly as the (C)CAPM - to explain the cross-section of average stock returns. Unlike many previous empirical tests of the (C)CAPM, we specify the pricing kernel as a conditional linear factor model, as would be expected if risk premia vary over time. Central to our approach is the use of a conditioning variable which proxies for fluctuations in the log consumption-aggregate wealth ratio and is likely to be important for summarizing conditional expectations of ...
Journal Article
Volatile firms, stable economy
Report
The joint dynamics of liquidity, returns, and volatility across small and large firms
This paper explores liquidity spillovers in market-capitalization-based portfolios of NYSE stocks. Return, volatility, and liquidity dynamics across the small- and large-cap sectors are modeled by way of a vector autoregression model, using data that spans more than 3,000 trading days. We find that volatility and liquidity innovations in one sector are informative in predicting liquidity shifts in the other. Impulse responses indicate the existence of persistent liquidity, return, and volatility spillovers across the small- and large-cap sectors. Lead and lag patterns across small- and ...
Journal Article
Market declines: what is accomplished by banning short-selling?
In 2008, U.S. regulators banned the short-selling of financial stocks, fearing that the practice was helping to drive the steep drop in stock prices during the crisis. However, a new look at the effects of such restrictions challenges the notion that short sales exacerbate market downturns in this way. The 2008 ban on short sales failed to slow the decline in the price of financial stocks; in fact, prices fell markedly over the two weeks in which the ban was in effect and stabilized once it was lifted. Similarly, following the downgrade of the U.S. sovereign credit rating in 2011?another ...
Report
Pricing the term structure with linear regressions
We estimate the time series and cross section of bond returns by way of three-stage ordinary least squares, which we label dynamic Fama-MacBeth regressions. Our approach allows for estimation of models with a large number of pricing factors. Even though we do not impose yield cross-equation restrictions in the estimation, we show that our bond return regressions generate a term structure of interest rates with small yield errors when compared with commonly reported specifications. We uncover specifications that give rise to lower pricing errors than do commonly advocated specifications, both ...
Journal Article
The stock market: too high? too low? just right
Report
Decomposing short-term return reversal
The profit to a standard short-term return reversal strategy can be decomposed analytically into four components: 1) across-industry return momentum, 2) within-industry variation in expected returns, 3) under-reaction to within-industry cash flow news, and 4) a residual. Only the residual component, which isolates reaction to recent ?nonfundamental? price changes, is significant and positive in the data. A simple short-term return reversal trading strategy designed to capture the residual component generates a highly significant risk-adjusted return three times the size of the standard ...
Working Paper
An efficiency perspective on the gains from mergers and asset purchases
A simple efficiency-based view states that acquisitions shift assets to more productive owners. This implies that expected returns from acquisitions increase with transaction value. We propose using the sensitivity of abnormal returns to scaled transaction value as a measure of efficiency gains. Using this method, we find that the average acquirer obtains an increase of 3% - 5% in the value of the acquired assets. However, efficiency gains vary sharply across acquirer and deal characteristics. We find statistical significance for interactions of relative value and variables known to affect ...
Working Paper
Log-periodogram estimation of long memory volatility dependencies with conditionally heavy tailed returns
Many recent papers have used semiparametric methods, especially the log-periodogram regression, to detect and estimate long memory in the volatility of asset returns. In these papers, the volatility is proxied by measures such as squared, log-squared and absolute returns. While the evidence for the existence of long memory is strong using any of these measures, the actual long memory parameter estimates can be sensitive to which measure is used. In Monte-Carlo simulations, I find that the choice of volatility measure makes little difference to the log-periodogram regression estimator if the ...
Journal Article
Spring of disconnect across stock markets?