This paper investigates the finite-sample behaviour of sovereign credit migration estimators and analyzes the properties of the rating process. Through bootstrap simulations, we compare a discrete multinomial estimator and two continuous hazard rate methods which differ in that one neglects...

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 examine the forward premium anomaly at horizons of 1 month to 10 years. To overcome the data overlap problem, the estimation procedure used is a heteroscedastic and autocorrelation consistent bootstrap estimation procedure. Our point estimates and bootstrap p-values show that the anomaly...

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...

Commodity futures market efficiency has commonly been investigated in the standard I(1)-I(0) cointegration framework and it has provided inconclusive and conflicting results. However, recent empirical studies have found that the spot-futures basis is a fractionally integrated or long memory...