URL des Documents de travail : http://ces.univ-paris1.fr/cesdp/CESFramDP2007.htm<br />Appear in Annuals Review in Control : April 2009 (vol.33, n°1, pp. 89-93)Documents de travail du Centre d'Economie de la Sorbonne 2007.54 - ISSN : 1955-611XIn this article, we specify the different approaches followed by the economists and the financial economists in order to use chaos theory. We explain the main difference using this theory with other research domains like the mathematics and the physics. Finally, we present tools necessary for the economists and financial economists to explore this domain empirically.Dans ce papier, on compare les différentes approches utilisées par les communautés économiste et financière concernant la théorie du chaos ...