We develop extensions of the variance-ratio statistic for testing the hypothesis a time series is uncorrelated and investigate their finite-sample performance. The tests employ an estimator of the asymptotic covariance matrix of the sample autocorrelations that is consistent under the null for...

We analyse a unique sample of 165 foreign divestitures by UK firms 1986-1995. These divestitures lead to significantly positive shareholder wealth effects of 4.8% over the 10 days before and after the announcement date. They are several times larger than the corresponding wealth effects reported...

This paper empirically examines the impact of earnings management and investor sentiment on IPO anomalies using a sample of 506 Chinese IPOs issued over the 1998–2003 period. We develop a parsimonious pricing model in which both the offer price and the short-term aftermarket price are...