2008 | OriginalPaper | Chapter
Semiparametric estimation for financial durations
Authors : Juan M. Rodríguez-Poo, David Veredas, Antoni Espasa
Published in: High Frequency Financial Econometrics
Publisher: Physica-Verlag HD
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We propose a semiparametric model for the analysis of time series of durations that show autocorrelation and deterministic patterns. Estimation rests on generalized profile likelihood, which allows for joint estimation of the parametric—anACD type of model—and nonparametric components, providing consistent and asymptotically normal estimators. It is possible to derive the explicit form for the nonparametric estimator, simplifying estimation to a standard maximum likelihood problem.