TY - BOOK AU - Nielsen, Morten orregaard Nielsen TI - Efficient inference in multivariate fractionally integrated time series models PY - 2004/// KW - Econometrics KW - Asymptotic local power;Efficient estimation;Efficient test;Fractional integration;Multivariate ARFIMA model;Multivariate fractional unit root;Nonstationarity;Stationarity test ER -