This paper uses a frequency domain approach to gain insight into the correlation between survey indicators and year … of the correlation between survey indicators and year-on-year GDP growth at the different frequencies to explain their … overall correlation. We show that survey indicators, similar to year-on-year GDP growth, do not perfectly reflect business …

conditional correlation approach. We find that cross-products are indeed long memory processes, but that this feature arises from … long memory in conditional volatilities and not from long memory in conditional correlation …

correlation structures that geometrically represents solutions from asymptotic Random Matrix theory (RMT) consistently, and allows … tests, with information about previous evolution of correlation in time. We apply this solution to financial time series …