We analyzed six stock exchange markets through the nonlinear dynamics concept. We used daily data from the Toronto Stock Exchange, NYSE, London Stock Exchange, Hong Kong Stock Market, Tokyo Stock Exchange, and the Singapore Stock Exchange. The period studied is from January 1, 1988 to June 30,...

The main task of this work is to develope a model able to encompass, at the same time, Keynesian, demand-driven, and Marxian, profit-driven determinants of fluctuations. Our starting point is the Goodwin's model (1967), rephrased in discrete time and extended by means of a coupled dynamics...

Replaced with revised version of paper 10/22/08.

Agricultural price volatility is "bad". But where does it come from? Remedies are completely different for "endogenous" or "exogenous" fluctuations. The recent crisis seems to indicate that exogenous remedies have been applied to endogenous fluctuations.

Cette thèse propose une analyse des politiques de stabilisation des prix alimentaires dans les pays pauvres. Afin de représenter la situation dans ces pays, nous considérons dans un modèle de stockage à anticipations rationnelles que les consommateurs ne peuvent pas s'assurer contre le...

Die Dynamik des Wohnimmobilienmarktes wird insbesondere durch die Veränderung der Einkommen junger Haushalte bestimmt. Zu diesem Ergebnis kommt eine neue Studie des ifo Instituts über "Fluktuationen des Wohnimmobilienmarktes", in der ein für die USA und Großbritannien entwickelter...

We study the environmental and economic effects of public abatement in the presence of multiple stable steady-state ecological equilibria featuring reversible hysteresis. The isocline for the stock of pollution possesses two stable branches. Assuming that the ecology is initially located on the...