In this paper, we study in the framework of the RDEU model, on one hand the bid-ask spread, and on the other hand the disparity between the buying price and the selling price of a random variable. We show that there is no fundamental difference between the results obtained in the framework of...

The Choquet expected utility model (Schmeidler, 1989) is a generalization of the expected utility model introducing a non-additive measure (or capacity) and refering to the concept of Choquet integral. The aim of this paper is to present such an integral with help of simple graphical arguments...

The aim of this paper is to present, to analyze and to compare models in the field of industrial organization in which firms can strategically use their debt in order to influence the market structure or the degree of competition within the industry. The original feature of this particular trend...