Many empirically observed time series, even when behaving as stationary processes (eventually after differencing), exhibit characteristics of extremely high persistence. Unit root tests and autocorrelation functions do not always provide unequivocal indications regarding long-run dynamic...

The strong rise in the unemployment rates of European countries in the 1980 has motivated time series studies aimed to determine whether the effects of transitory economic shocks had significant persistence in time. The objective of this paper is to deter

Is there a short- to medium-term linkage between macroeconomic and exchange rate volatility? This paper provides a clear-cut answer to the above question, pointing to significant linkages and trade-offs between macroeconomic and exchange rate volatility, particularly involving output volatility....

This paper identifies structural breaks in the post-World War II joint dynamics of U.S. inflation, unemployment and the short-term interest rate. We derive a structural break-date procedure which allows for long-memory behavior in all three series and perform the analysis for alternative data...

It has been recently emphasized that, if individuals have heterogeneous dynamics, estimates of shock persistence based on aggregate data are significatively higher than those derived from its disaggregate counterpart. However, a careful examination of the implications of this statement on the...

An exploratory estimation of ARFIMA(p,d,q) models showed that the estimated d is sensitive to the short-term dynamics included. To address this issue, I run a series of Monte Carlo experiments and test the performance (i) of the AIC and the SIC in selecting p and q and (ii) of the AIC, the SIC...

An exploratory estimation of ARFIMA(p,d,q) models showed that the estimated d is sensitive to the short-term dynamics included. To address this issue, I run a series of Monte Carlo experiments and test the performance (i) of the AIC and the SIC in selecting p and q and (ii) of the AIC, the SIC...