We examine the size properties of tests for causality in variance in the presence of structural breaks in volatility. Extensive Monte Carlo simulations demonstrate that these tests suffer from severe size distortions when such breaks are not taken into account. Pre-testing the series for...

This paper examines the roles of domestic and international variables in predicting expansion and recession regimes of the growth rate cycle for Germany, France, Italy and the UK over the period 1972 to 2003, using a range of real and financial variables as leading indicators. The output gap,...

We test for a change in the volatility of 215 US macroeconomic time series over the period 1960-1996. We find that about 90% of these series have experienced a break in volatility during this period. This result is robust to controlling for instability in the mean and business cycle...

We test for a change in the volatility of 214 US macroeconomic time series over the period 1959-1999. We find that about 80% of these series have experienced a break in unconditional volatility during this period. Even though more than half of the series experienced a break in conditional mean,...

This paper examines the roles of domestic and international variables in predicting classical business cycle regimes in Germany, France, Italy and the UK over the period 1970 to 2001. A range of real and financial variables are used as leading indicators in domestic models, with these variables...

This paper investigates the nature of nonlinearities in the monetary policy rule of the US Fed using the flexible approach of Hamilton (2001). We find that while there is significant evidence of nonlinearity for the period to 1979, there is little such evidence for the subsequent period....