This thesis identifies the financial incentives of litigants and lawyers to behave in certain ways in relation to civil litigation files. By identifying such incentives, this thesis raises questions about the extent to which substantive and procedural private law is capable of being influenced by them. Specifically, this thesis argues that: lawyers have a lawmaking function within the private law system; lawyers have financial incentives distinct from those of their clients; and the costs of retaining lawyers produce observable incentives and effects on the outcomes of civil litigation matters. In addition to the many theoretical materials cited, empirical data have been cited from research observing the legal profession in North America and elsewhere. This thesis argues that external influences--such as financial incentives for non-parties--can affect the way private law applies and develops. This thesis also identifies general regulatory strategies that might limit the influence of external factors on private law.

Cette thèse s'inscrit dans le cadre d'une convention CIFRE entre la Chambre Nationale des huissiers de justice et l'université Paris Dauphine. Afin de doter la profession d'huissier de justice d’arguments quantitatifs et qualitatifs pour mener à bien les différentes actions et anticiper les évolutions relatives à la profession, nous proposons dans ce projet de thèse d'analyser la démographie des offices d'huissier, leur localisation, leur structures, la sensibilité de l'activité de ces professionnels à la conjoncture. Ce projet s'engage également à évaluer l'équilibre économique des offices, au regard de règles de tarification complexes et enfin d'analyser la régulation du marché des services juridiques. / This thesis joins within the framework of a CIFRE agreement between the National Chamber of the bailiffs and the Paris Dauphine university. To endow the profession of bailiff of quantitative and qualitative arguments to bring to a successful conclusion the various actions and anticipate the evolutions relative to the profession, we suggest in this project of thesis analyzing the demography of bailiff's services, their localization, structure them, the sensibility of the activity of these professionals in the situation. This project also makes a commitment to estimate the balance in the economy of services, with regard to complex rules of pricing and finally to analyze the legal regulation of the services market.