In this thesis we propose to give some applications and generalizations of the theory of controlled rough paths, which can be summarized under three headings :- Getting a "good" notions of rough sheet which allows the construction of two dimensional integral driven by an irregular noise...

In this thesis, we are interested in collective decision-making. The objective is to find a tradeoff solution for problems that are evaluated by multiple points of view. We consider problems having a matroid structure. Matroid theory is significant in combinatorial optimization, it helped to...

Project portfolio management (PPM) involves the use of methods and tools, allowing an organization to plan, evaluate, analyze and screen the execution of a set of projects or project proposals, sharing common resources or aiming at the attainment of common objectives. Multicriteria decision aid...

The goal of this thesis is to propose new general methods to get around the intractability of multi-objective optimization problems.First, we try to give some insight on this intractability by determining an, easily computable, upper bound on the number of nondominated points, knowing the number...

The aim of this thesis is to analyze, from an empirical point of view, both the different varieties of economic and financial crises (typological analysis) and the context’s characteristics, which could be associated with a likely occurrence of such events. Consequently, we analyze both: years...

Death is the unescapable event that most of individuals want to hide motivated by a fundamental will to stay alive. Because it can be source of mystery, fascination and anxiety, this topic has been of specific interest in psychology thanks to the Terror Management Theory (TMT). This theory...

Secondhand shopping is a growing phenomenon. While secondhand shopping motivations received a lot of attention in marketing literature, consumer reluctance to shop secondhand remains under-Researched, especially in an online context. Yet, the stakes in better understanding this reluctance are...

Perception that the client has of his own brand loyalty has not been addressed in the marketing literature. This research attempts to overcome this limit in four ways: (1) demonstrating that customer’s perceived loyalty can be approached through Self-Categorization as brand Loyal (SCL)...

Within the behavioral research in sales promotion, the product and brand usage is almost never taken into account by researchers, in spite of its relevance as a mediating variable between sales promotion and satisfaction or loyalty. This research, applied to clothing, aims at studying the direct...

Noting that the use of Internet is not only utilitarian but experiential indeed cultural, this dissertation describes in depth and explains what people lives in their online consumer experiences. This description is done through the three great social and personal changes brought by the advent...