Showing 1 - 10 of 1,177
We propose methods for testing hypotheses of non-causality at various horizons, as defined in Dufour and Renault (1998, Econometrica). We study in detail the case of VAR models and we propose linear methods based on running vector autoregressions at different horizons. While the hypotheses...
Persistent link: https://www.econbiz.de/10005353142
This paper develops a general stochastic framework and an equilibrium asset pricing model that make clear how attitudes towards intertemporal substitution and risk matter for option pricing. In particular, we show under which statistical conditions option pricing formulas are not...
Persistent link: https://www.econbiz.de/10005353166
In this paper, we characterize the asymmetries of the smile through multiple leverage effects in a stochastic dynamic asset pricing framework. The dependence between price movements and future volatility is introduced through a set of latent state variables. These latent variables can capture...
Persistent link: https://www.econbiz.de/10005353244
The GARCH and Stochastic Volatility paradigms are often brought into conflict as two competitive views of the appropriate conditional variance concept : conditional variance given past values of the same series or conditional variance given a larger past information (including possibly...
Persistent link: https://www.econbiz.de/10005353319
This paper assesses the empirical performance of an intertemporal option pricing model with latent variables which generalizes the Hull-White stochastic volatility formula. Using this generalized formula in an ad-hoc fashion to extract two implicit parameters and forecast next day S&P 500 option...
Persistent link: https://www.econbiz.de/10005729742
This paper addresses the issue of estimating semiparametric time series models specified by their conditional mean and conditional variance. We stress the importance of using joint restrictions on the mean and variance. This leads us to take into account the covariance between the mean and the...
Persistent link: https://www.econbiz.de/10005729782
Latent variable models in finance originate both from asset pricing theory and time series analysis. These two strands of literature appeal to two different concepts of latent structures, which are both useful to reduce the dimension of a statistical model specified for a multivariate time...
Persistent link: https://www.econbiz.de/10005729805
We propose methods for testing hypotheses of non-causality at various horizons, as defined in Dufour and Renault (1998, Econometrica). We study in detail the case of VAR models and we propose linear methods based on running vector autoregressions at different horizons. While the hypotheses...
Persistent link: https://www.econbiz.de/10005353062
We study the effects on the food market of the introduction of biofuels as a substitute for fossil fuel in the energy market. We consider a world economy with an oil cartel and a competitive fringe of farmers producing energy in the form of biofuels. Farmers also produce food and sell it on the...
Persistent link: https://www.econbiz.de/10010933658
We consider a renewable resource being exploited in common by firms that compete both in the output market and in the exploitation of the resource. We show that the introduction of the slightest cost differentiation among the firms can have a drastic effect on the nature of the equilibria that...
Persistent link: https://www.econbiz.de/10010933659