This article studies the relationship between initial market response to earnings surprise and subsequent stock price movement.We first develop a new measure – the earnings response elasticity (ERE) – to capture initial market response. It is defined as the absolute value of earnings...

In this study, we take advantage of the unique features of the Taiwan stock market, where short selling is forbidden within the first six months following an IPO. We examine the effects of short selling on IPO price efficiency and the relation between short selling activities and the fundamental...

This study of the post – earnings announcement drift and the value – glamour anomaly finds that value stocks have greater information uncertainty, exhibit more-muted initial market reactions to earnings surprises, and have better (more positive or less negative) post – earnings...

Theoretical models on herd behavior predict that under different assumptions, herding can bring prices away (or towards) fundamentals and reduce (or enhance) market efficiency. In this article, we study the joint effect of herding and momentum at the industry level. We find that the momentum...

Theoretical models on herd behavior predict that under different assumptions, herding can bring prices away (or towards) fundamentals and reduce (or enhance) market efficiency. In this article, we study the joint effect of herding and momentum at the industry level. We find that the momentum...

Using a broad sample of earnings announcements, we find that option call and put implied volatilities become increasingly misaligned as the earnings announcement dates (EAD) get closer. The percentage deviation between call and put implied volatilities increases monotonically in the one-month...