Showing 1 - 10 of 206
Cet article expose la problématique de la volatilité des prix des matières premières, montre quels sont les moyens pour s’en protéger et explique comment les employer. Les instruments de couverture sont présentés en première section, en distinguant le type de besoin auquel ils...
Persistent link: https://www.econbiz.de/10008532326
Whereas the process of integration economic is accentuated in Europe, regional integration dynamics of space seems to be a crucial issue. Reflexions engaged, in particular through the SDEC, aim at promoting a voluntarist policy of polycentric adjustment of European space. Thus we are led to...
Persistent link: https://www.econbiz.de/10005379208
Les méthodes de l'économétrie spatiale visent à traiter les deux grandes particularités des données spatiales : l'autocorrélation spatiale qui se réfère à l'absence d'indépendance entre observations géographiques et l'hétérogénéité spatiale qui est liée à la différenciation...
Persistent link: https://www.econbiz.de/10005587835
Les méthodes de l'économétrie spatiale visent à traiter les deux grandes particularités des données spatiales : l'autocorrélation spatiale qui se réfère à l'absence d'indépendance entre observations géographiques et l'hétérogénéité spatiale qui est liée à la différenciation...
Persistent link: https://www.econbiz.de/10005587847
This article describes the application to an operational medium-size econometric model, mini-DMS, of methods associating, to deterministic forecasts, a measure of the uncertainty due to the stochastic nature of behavioural equations. After having described the theoretical and practical...
Persistent link: https://www.econbiz.de/10015221495
This paper presents a revised version of the model OPTIM, proposed by Irac and Sédillot (2002), used at the Banque de France in order to predict French GDP quarterly growth rate, for the current and next quarters. The model is designed to be used on a monthly basis by integrating monthly...
Persistent link: https://www.econbiz.de/10005036218
Le modèle OPTIM permet de prévoir, chaque mois, les taux de croissance du PIB de la France et de ses principales composantes, pour le trimestre en cours et le trimestre suivant. Ce modèle mobilise un large éventail de données macro-économiques mensuelles et de données d’enquête,...
Persistent link: https://www.econbiz.de/10009225680
In this paper, we consider American option contracts when the underlying asset has stochastic dividends and stochastic volatility. We provide a full discussion of the theoretical foundations of American option valuation and exercise boundaries. We show how they depend on the various sources of...
Persistent link: https://www.econbiz.de/10005100925
The Wishart Autoregressive (WAR) process is a multivariate process of stochastic positive definite matrices. The WAR is proposed in this paper as a dynamic model for stochastic volatility matrices. It yields simple nonlinear forecasts at any horizon and has factor representation, which separates...
Persistent link: https://www.econbiz.de/10005357414
We introduce a tractable class of non-affine price processes with multifrequency stochastic volatility and jumps. The specifi cations require few fixed parameters and deliver fast option pricing. One key ingredient is a tight link between jumps and volatility regimes, as asset pricing theory...
Persistent link: https://www.econbiz.de/10010505458