This paper proposes a new nonparametric test for conditional independence, which is based on the comparison of Bernstein copula densities using the Hellinger distance. The test is easy to implement because it does not involve a weighting function in the test statistic, and it can be applied in...

La récente crise économique et fi nancière appelle non pas une modification de la stratégie de politique monétaire, mais une meilleure prise en compte des conditions financières et du risque de crise fi nancière dans la mise en oeuvre de cette stratégie : telle semble être la principale...

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...

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...

This paper generalizes the Bollerslev and Zhang (2003) approach for the estimation of loadings of asset pricing models using "realized" measures and co-measures of risk. We propose here to extend this approach by including higher-moments in asset pricing models. Estimations are conducted using...

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:...

We propose methods for testing hypothesis 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...

In this paper, we study real wage fluctuations in response to monetary shocks. We estimate five different models corresponding to five sets of monetary policy restrictions. Monetary shocks are measured by innovations in the nominal interest rate, total reserves and non-borrowed reserves. Our...

The key goal of this paper is to analyse the effect of money supply growth on inflation in the case of Madagascar. The result of the model show that an increase in the money supply would lead to an increase in inflation of around 2,4\% in the second year.Thereafter, a gradual decline is...

This work investigates the impact of an increase in the money supply on inflation using DSGE model in Madagascar. The results showed a strong positive correlation between these two variables, confirming the economic theory that an increase in the money supply leads to a proportional increase in...