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  • Publication
    Accès libre
    Semiparametric segment M-estimation for locally stationary diffusions
    (2019) ;
    La Vecchia, Davide
    We develop and implement a novel M-estimation method for locally stationary diffusions observed at discrete time-points. We give sufficient conditions for the local stationarity of general time-inhomogeneous diffusions. Then we focus on locally stationary diffusions with time-varying parameters, for which we define our M-estimators and derive their limit theory.