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...

The focus in this paper is on the time series dynamics of the basis for commodity futures. These have special interest since regulation of commodity markets is much laxer than is typical for stock markets. However, although such futures contracts have been traded for several decades, they have...

We provide evidence that ex ante misvaluation matters for merger activities in the UK 1986-2002 using a sample of 302 bidders and targets. Sector or long-run misvaluation causes merger firms to be more overvalued than nonmerger firms. Acquirers are overvalued absolutely and relative to targets...