This article presents and compares two different Kalman filters. These methods provide a very interesting way to cope with the presence of non-observable variables, which is a frequent problem in finance. They are also very fast even in the presence of a large information volume. The first...

This article inves tigates the time evolution of the integra tion of derivative markets through the graph-theory. We focus on three categor ies of underlying as sets : energy and agricultural products , as well as financial assets . Integration is seen as a necessary condition for systemic risk...

Cet article s’appuie sur une analyse en composantes principales pour identifier les mouvements des courbes de prix du pétrole brut. L’étude confirme que trois composantes permettent d’expliquer les fluctuations des prix à terme : déplacement parallèle, pentification, et courbure. De...

In order to enhance the understanding of the term structure of commodity prices, this article examines the temporal integration of the American crude oil futures market. The study relies on a database including futures prices for very long maturities (as far as seven years) and compares their...

Whereas the spatial integration has already been examined in commodity markets, empirical tests on temporal integration have never been carried out. Relying on the “preferred habitat” theory, which is applied to the crude oil market, this article investigates whether this market is segmented...