Internet offers real openness on pricing policy increasing the buyer's market power. Higher competition should result from an easier comparison of the offers with, as a consequence, price decrease and lower margins. This article explores the validity of such an assumption and studies major...

In Mali, the situation of cotton growing households has traditionally been considered as more favorable than that of food crop producers. However, official statistics on poverty suggest that the cotton growing region of Sikasso is among the poorest regions of the country and that cotton...

This article is centred on the volatility of commodity prices. It presents the instruments offering a protection against volatility and shows how they can be employed. The first section exposes these derivative instruments. It distinguishes them in step with the need they respond and the way...

The aim of this work consists of a panoramic study of trading halts (trading reservations and suspensions) in the different world stock Exchanges. We draw up an inventory of the regulatory environments. We then compare the practices on the international financial markets. We show that the...

Islamic and conventional investment funds have the same purpose. However, unlike conventional funds, Islamic funds offer different investment contracts and have to invest in accordance with a set of selection rules. This dissertation focuses on developing theoretical and empirical analysis...

The purpose of the regulated interruptions of quotation on Stock exchange markets is to reduce asymmetries of information and volatility and to allow the emergence of a consensus. The use of these interruptions is very frequent on the French stock exchange market for the values included in the...

The purpose of the regulated halts on stock exchange markets is to spread the information on the market and to protect the interests of the small shareholders. The aim of this work is to empirically investigate the trading halts on the French stock exchange market. We proceed to a detailed...

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...