The Central Bank of Congo (BCC) lowered policy rate in response to uncertainty surrounding COVID-19. The impact of the pandemic on the economy is uncertain and depends on several factors. This cut in the policy rate would not help the economy to limit the fallout from COVID-19, so we should...

This paper sheds a new light on the puzzling negative relationship between nominal stock returns and expected inflation. The assertion that stocks offer a hedge against inflation is theoretically founded on the Fisher identity. Contrary to this fundamental view, recent empirical tests reject...

The main aim of this paper is to examine the qualities of the mixed diffusion-jump process whose parameters are random variables. The hypothesis of a Wiener geometric process applied to exchange rate has become doubtful at the beginning of the nineties, fact determined by a high leptokurtosis of...

The main aim of this paper is to examine the qualities of the mixed diffusion-jump process whose parameters are random variables. The hypothesis of a Wiener geometric process applied to exchange rate has become doubtful at the beginning of the nineties, fact determined by a high leptokurtosis of...

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...

Le rapport fait le point sur les interactions entre la volatilité des prix du pétrole et les stratégies des acteurs financiers. Il présente également les réflexions et actions en cours au niveau international pour améliorer le fonctionnement des marchés pétroliers. Et au final, il...

This survey appears in extension of a previous exploratory survey (Bouraoui, 2008) dedicated to the impact of stock spams on volumes. The interest of the present research is to study the impact on stock prices while taking into account the evolution of volatility over time through a GARCH (1,1)...

This MSc thesis proposes the analysis of high frequency ODAX options during October 2001. It consists of three chapters investigating respectively market activity, arbitrage opportunities and performance of various implied volatility surfaces.