Asymptotic theory of statistical inference
Asymptotic theory of statistical inference
Generalised long-memory GARCH models for intra-daily volatility
Computational Statistics & Data Analysis
Local bootstrap approaches for fractional differential parameter estimation in ARFIMA models
Computational Statistics & Data Analysis
Environmental Modelling & Software
Mathematics and Computers in Simulation
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This paper discusses the estimation of fractionally integrated processes with seasonal components. In order to estimate the fractional parameters, we propose several estimators obtained from the regression of the log-periodogram on different bandwidths selected around and/or between the seasonal frequencies. For comparison purposes, the semi-parametric method introduced in Geweke and Porter-Hudak (1983) and Porter-Hudak (1990) and the maximum-likelihood estimates (ML) are also considered. As indicated by the Monte Carlo simulations, the performance of the estimators proposed is good even for small sample sizes.