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http://ssrn.com/abstract=757352
 
 

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Nonlinear Innovations and Impulse Responses with Application to VaR Sensitivity


Christian Gourieroux


University of Toronto - Department of Economics; Center for Interuniversity Research and Analysis on Organization (CIRANO); Ecole Nationale de la Statistique et de l'Administration Economique (ENSAE); National Bureau of Economic Research (NBER)

Joann Jasiak


York University - Department of Economics

November 2003

Les Cahiers du CREF of HEC Montréal Working Paper No. 03-08

Abstract:     
This paper introduces impulse response analysis for nonlinear processes based on the concept of nonlinear innovation. Our approach borrows from the traditional linear impulse response analysis in that we consider shocks to innovations of a process. It also extends the methods of nonlinear impulse response analysis proposed earlier in the literature, in that it eliminates the problem of serial correlation of error terms, allows to examine permanent shocks, i.e. shocks occurring repeatedly in time, and provides straightforward interpretation of transitory of symmetric shocks. In our approach, the impulse responses are represented by the joint distribution of the perturbed and unperturbed paths. The analysis can be applied to processes such as the popular GARCH, or ACD, and can be used to study shock sensitivity of dynamic financial strategies. As an illustration, we show how impulse responses can determine the Value at Risk and the minimum capital requirement under a dynamic portfolio management.

Number of Pages in PDF File: 42

Keywords: Nonlinear Dynamics, Gaussian Innovations, Volterra Expansion, Impulse Response, ACD Model, Value at Risk

JEL Classification: C10, C22, C52, G11

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Date posted: July 18, 2005  

Suggested Citation

Gourieroux, Christian and Jasiak, Joann, Nonlinear Innovations and Impulse Responses with Application to VaR Sensitivity (November 2003). Les Cahiers du CREF of HEC Montréal Working Paper No. 03-08. Available at SSRN: http://ssrn.com/abstract=757352 or http://dx.doi.org/10.2139/ssrn.757352

Contact Information

Christian Gourieroux (Contact Author)
University of Toronto - Department of Economics ( email )
150 St. George Street
Toronto, Ontario M5S 3G7
Canada
416-978-4349 (Phone)
416-978-6713 (Fax)
Center for Interuniversity Research and Analysis on Organization (CIRANO) ( email )
2020 rue University, 25th Floor
Montreal, Quebec H3C 3J7
Canada
Ecole Nationale de la Statistique et de l'Administration Economique (ENSAE) ( email )
15 Boulevard Gabriel Peri
92245 Malakoff Cedex
France
33.4117.7666 (Fax)
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
Joann Jasiak
York University - Department of Economics ( email )
4700 Keele St.
Toronto, Ontario M3J 1P3
Canada
416-736-2100 EX77045 (Phone)
416-736-5987 (Fax)
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References:  32
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