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Fractional Integration in the Purchasing Power Parity.
Gil-Alana, L., (1998)
Nelson and Plosser Revisited: Evidence from Fractional Arima Models.
Testing of Seasonal Fractional Integration in U.K. and Japanese Consumption and Income.
The Simulated Likelihood Ratio (SLR) Method
Billio, M., (1998)
Bayesian estimation of switching ARMA models
Billio, Monica, (1996)
Billio, Monica, (1999)