Africa is today the most important part of the Francophonie. French is an official or co-official language along with other languages in 21 African countries, all in sub-Saharan Africa (SSA). Since the end of colonialism and Cold War politics, changes in the Francophonie have been driven largely...

This paper analyses the determinants of the investment decision by focusing on the firms subjective judgments about the impact of some economic factors. This work uses data from the INSEEs business surveys on investment in the industry, over the period 1991-2002. In October, these data contain...

This article sheds light on the important differences in self-declared happiness across countries of equivalent affluence. It hinges on the different happiness statements of natives and immigrants in a set of European countries to disentangle the influence of objective circumstances versus...

This paper deals with the role of speculation on food prices' fluctuations in Senegal. The analysis is based on a nonlinear rational expectations commodity storage model which seems to be the appropriate approach to explain the behavior of the speculators who intervene on the food markets. The...

Using Consensus Forecasts monthly surveys, we show that experts' interest rate expectations in the Eurofranc market do not verify the rational expectations hypothesis. Instead, these expectations are found to be generated by a mixed process combining the traditional adaptive, regressive and...

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...

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)...