Showing 1 - 10 of 210
In a Constant Proportion Portfolio Insurance (CPPI) framework, a constant risk exposure is defined by the multiple of the strategy. This article proposes an alternative conditional multiple estimation model, which is based on an autoregressive quantile regression dynamic approach. We estimate...
Persistent link: https://www.econbiz.de/10004991605
We consider the problem of testing whether the observations X1, · · ·, Xn of a time series are independent with unspecified (possibly nonidentical) distributions symmetric about a common known median. Various bounds on the distributions of serial correlation coefficients are proposed:...
Persistent link: https://www.econbiz.de/10005100838
The objective of this paper is to provide a complete framework to aggregate different quantile and expectile models for obtaining more diversified Value-at-Risk and Expected Shortfall measures, by applying the diversification principle to model risk. Following Taylor (2008) and Gouriéroux and...
Persistent link: https://www.econbiz.de/10008470280
This study tests an international extension of the Asset Pricing Model (CAPM) based on the coexistence of two risk causes. The first cause is linked to the market portfolio and the second one is required by expectations about the variation of exchange rates. Through an application to various...
Persistent link: https://www.econbiz.de/10005404303
This paper focuses on the effects of oil subsidies removal on households’ welfare in Senegal. The methodology is based on the estimations of gas and electricity demand functions using data from the Poverty Follow-up Survey. The results suggest a gas subsidies removal in the whole country even...
Persistent link: https://www.econbiz.de/10015241830
Cet article vise à analyser le comportement cyclique de la série du cours de l'action Orange du 03/01/2000 à 02/02/2017 par la recherche de la non linéarité à travers d'une classe de modèles non paramétriques hétéroscédastiques, notée NAR-ARCH. L'identification des modèles non...
Persistent link: https://www.econbiz.de/10015254775
This paper aims to analyze the cyclical behavior of stock exchange Orange prices from 01/03/2000 to 02/02/2017 by the research of nonlinearities through a class of heteroscedastic non parametric models. The identification of non parametric models requires the selection of the Markov coefficients...
Persistent link: https://www.econbiz.de/10015254837
Résumé: Nous étudions la puissance en terme de prévision des processus basés sur la méthode du noyau en utilisant la version non paramétrique du critère « Final Prediction error » pour identifier un processus fonctionnel hétéroscédastique. Cette identification nécessite une...
Persistent link: https://www.econbiz.de/10015255070
Résumé: Nous étudions la puissance en terme de prévision des processus basés sur la méthode du noyau en utilisant la version non paramétrique du critère « Final Prediction error » pour identifier un processus fonctionnel hétéroscédastique. Cette identification nécessite une...
Persistent link: https://www.econbiz.de/10015255088
Cet article vise à identifier un processus non linéaire par la méthode du noyau. Cette identification nécessite une sélection rigoureuse des coefficients de Markov et le choix de la fenêtre qui détermine le degré de lissage de l’estimateur. This paper aims to identify a nonlinear...
Persistent link: https://www.econbiz.de/10015257894