Dijk, D van; Osborn, D R; Sensier, M - School of Economics, University of Manchester - 2002
Volatility breaks are tested and documented for 19 important monthly macroeconomic time series across the G7 countries … structural break, volatility breaks are found to be widespread. This continues to hold when business cycle nonlinearities are … allowed in the variance. Multiple volatility breaks are also examined, and these are found to be especially prevalent for …