Paris Dauphine University

About: Paris Dauphine University is a education organization based out in Paris, France. It is known for research contribution in the topics: Context (language use) & Population. The organization has 1766 authors who have published 6909 publications receiving 162747 citations. The organization is also known as: Paris Dauphine & Dauphine.

On trade creation and regional trade agreements: does depth matter?

Abstract: Regional trade agreements (RTAs) are usually classified according to their form into four broad categories: preferential arrangements, free trade agreements, customs unions and common markets. This paper investigates whether the form/depth of RTAs matters concerning their effect on trade. I use a proper specification of the gravity model with panel data on the 1960–2000 period, which specifically control for self-selection into agreements. Results show that creating any kind of RTAs providing trade preferences to their member countries significantly increases bilateral trade. Nevertheless, their average treatment effect on bilateral trade does not significantly differ according to the depth of agreements.

Une théorie de Morse pour les systèmes hamiltoniens convexes

Abstract: Resume On s’interesse a des systemes hamiltoniens convexes. On demontre que, sur une surface d’energie donnee, ou bien les trajectoires fermees sont en nombre infini, ou bien elles verifient une relation de resonance. On en deduit que generiquement, les trajectoires fermees sont en nombre infini. La demonstration repose sur une forme duale du principe de moindre action, sur la theorie de Morse, sur une formule d’iteration pour l’index, et sur le theoreme de transversalite de Thom.

Convergence rates with inexact non-expansive operators

Abstract: In this paper, we present a convergence rate analysis for the inexact Krasnosel'skiaź---Mann iteration built from non-expansive operators. The presented results include two main parts: we first establish the global pointwise and ergodic iteration-complexity bounds; then, under a metric sub-regularity assumption, we establish a local linear convergence for the distance of the iterates to the set of fixed points. The obtained results can be applied to analyze the convergence rate of various monotone operator splitting methods in the literature, including the Forward---Backward splitting, the Generalized Forward---Backward, the Douglas---Rachford splitting, alternating direction method of multipliers and Primal---Dual splitting methods. For these methods, we also develop easily verifiable termination criteria for finding an approximate solution, which can be seen as a generalization of the termination criterion for the classical gradient descent method. We finally develop a parallel analysis for the non-stationary Krasnosel'skiaź---Mann iteration.

Psoriasis: an epidemiological evaluation of disease burden in 590 patients

Abstract: Background There are limited data available on the economical burden of psoriasis and its impact on everyday life. Objective The aim of this study was to evaluate the impact of psoriasis on personal and professional life, and to evaluate the cost of psoriasis for the patient. Methods We performed a cross-sectional study in psoriasis patients. All patients aged ≥18 years with a diagnosis of plaque-psoriasis confirmed by a physician were included. A self-administered questionnaire evaluating everyday life was constructed with members of the French association of psoriasis patients. In addition, the Dermatology Life Quality Index (DLQI), Working Productivity and Activity Impairment and individual costs were assessed. Results A total of 590 patients completed the study. Mean age of the responders was 56 years. The mean DLQI score was 8.5 for patients with severe psoriasis vs. 6.4 for mild psoriasis. Global loss of productivity was 10.7% without significant difference according to the disease severity. Daily activities alteration was most important in patients with severe psoriasis. In this study, 36.8% of patients with severe psoriasis reported a negative impact on their professional life vs. 19.6% for patients with mild psoriasis (P = 0.002). Time devoted to phototherapy was on average 33 h/year/patient and the application of emollients took 25 h/year/patient; 47.3% of patients had a feeling to clean the house more often, in correlation with the severity of the disease. Mean out-of-pocket expenses for the disease was estimated to be 543€/year/patient. High impact of psoriasis on quality of life (DLQI >10), age <40 years and joint involvement were significantly associated with an increased risk of loss of work productivity. Conclusion Psoriasis, particularly severe psoriasis, is a true burden for patients and impacts significantly everyday life and patient’s economical resources.