We propose several multivariate variance ratio statistics. We derive the asymptotic distribution of the statistics and scalar functions thereof under the null hypothesis that returns are unpredictable after a constant mean adjustment (i.e., under the Efficient Market Hypothesis). We do not...

This paper examines the relation between firm-level implied volatility skew and the likelihood of extreme negative events, or crash risk. I show that volatility skew identifies which firms are likely to experience crashes, but only in short-window earnings announcement periods. The predictive...

A principal-components analysis demonstrates that common earnings factors explain a substantial portion of rm-level earnings variation, implying earnings shocks have substantial systematic components and are not almost fully diversifiable as prior literature has concluded. Furthermore, the...

Employing a broad sample of US firms over the period 1962 to 2009, we provide evidence of a liquidity risk impact on the fundamental earnings-returns relation. Specifically, we document that current liquidity risk has a positive moderating effect on the relation between current returns and next...

We examine the effect of options trading volume on the stock price response to earnings announcements over the period 1996–2007. Contrary to prior studies, we find no significant difference in the immediate stock price response to earnings information announcements between firms with listed...

Our study examines whether behavioural theories can explain post-earnings announcement drift (i.e., earnings momentum) in the Spanish market. In particular, we test models proposed by Daniel, Hirshleifer, and Subrahmanyan (1998), Hong and Stein (1999), and Barberis, Shleifer, and Vishny (1998)....

We investigate the change in the aggregate earnings-returns relation from negative to positive. We first identify a gradual structural break around the second quarter of 1991. We then find evidence of three contributing factors to the change in the relation. They are: i) an increase in the...

We propose the standard neoclassical model of investment under uncertainty with short-run adjustment frictions as a benchmark for earnings-return patterns absent accounting influences. We show that our proposed benchmark generates a wide range of earnings-return patterns documented in accounting...

We test the proposition in Johnstone (2016) that new information may lead to higher, rather than lower, uncertainty about firms' future payoffs. Based on the Bayesian rule, we hypothesize earnings news that is inconsistent with investors' prior belief will lead to higher market uncertainty....