A unit root testing procedure is presented that exploits the well-established power advantages of panel estimation while rectifying a deficiency in other panel unit root tests. This procedure, which takes into account contemporaneous cross-correlation and heterogeneous serial correlation of the...

In this paper we have tested various explanations for differences in rates of economic growth across states. We found no evidence consistent with Olson's hypothesis that differences in state age (a proxy for the strength of special interest groups) can explain differences in state growth....

Similar but alternative specifications of tests of forward rate unbiasedness provide conflicting evidence on the rejection of the hypothesis. These conflicting results are reconciled by demonstrating that although the root cause is simultaneity bias, the severity of this bias and the resulting...

The crowding out debate fails to incorporate the impact of expansionary policy on interest rates for private sector borrowing through changes in perceived default risk. In a modified IS-LM model with default risk dependent on the state of the economy, government borrowing has an indeterminate...

A unit root testing procedure is presented that exploits the well-established power advantages of panel estimation while rectifying a deficiency in other panel unit root tests. This test (called SURADF) is based on seemingly unrelated regressions applied to Augmented Dickey-Fuller (ADF) tests...

Standard autocorrelation corrections applied to cointegrating regressions can lead to erroneous first-differencing. Such outcomes are shown to be possible under a range of environments, including cases with autocorrelation coefficients substantially less than 1. First-differencing of a...