JSM 2004 - Toronto

Abstract #301509

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Activity Number: 222
Type: Contributed
Date/Time: Tuesday, August 10, 2004 : 10:30 AM to 12:20 PM
Sponsor: Biometrics Section
Abstract - #301509
Title: Estimating a Smooth Common Transfer Function with a Panel of Time Series--Inflow of Larvae Cod as an Example
Author(s): Elizabeth A. Hansen*+ and Kung-sik Chan and Nils C. Stenseth
Companies: University of Iowa and University of Iowa and University of Oslo
Address: Dept. of Statistics and Actuarial Science, Iowa City, IA, 52242,
Keywords: cod-spawning-date distribution ; (generalized) cross-validation ; seemingly unrelated regression ; multimodality
Abstract:

We consider the problem of estimating a smooth common transfer function shared by a panel of short time series that are contemporaneously correlated. We propose an estimation scheme using a likelihood approach that penalizes the roughness of the common transfer function. For a known smoothness parameter, the estimation can be done via an iterative procedure. The method of cross-validation can be used to determine the smoothness parameter. We illustrate the proposed method with a biological example of indirectly estimating the spawning date distribution of North Sea cod. Some simulation results are reported on the empirical performance of the proposed method.


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