User profiles for Raphaël Douady
Raphael DouadyUniversity Paris 1 Sorbonne Verified email at univ-paris1.fr Cited by 1623 |
[PDF][PDF] Stabilité ou instabilité des points fixes elliptiques
R Douady - Annales scientifiques de l'Ecole normale supérieure, 1988 - numdam.org
J. Moser a démontré qu'un point fixe elliptique d'un difféomorphisme de classe C du plan
préservant les aires est topologiquement stable, moyennant une condition de non …
préservant les aires est topologiquement stable, moyennant une condition de non …
Mathematical definition, mapping, and detection of (anti) fragility
The notions of fragility and antifragility were introduced by Taleb (2012). In short, fragility is
related to how a system suffers from the variability of its environment beyond a certain preset …
related to how a system suffers from the variability of its environment beyond a certain preset …
Bank regulation, risk and return: Evidence from the credit and sovereign debt crises
…, K Andriosopoulos, R Douady - Journal of banking & …, 2015 - Elsevier
In this paper, we analyze whether regulation reduced risk during the credit crisis and the
sovereign debt crisis for a cross section of global banks. In this regard, we examine distance to …
sovereign debt crisis for a cross section of global banks. In this regard, we examine distance to …
On probability characteristics of" downfalls" in a standard Brownian motion
R Douady, AN Shiryaev, M Yor - Theory of Probability & Its Applications, 2000 - SIAM
For a Brownian motion $B=(B_t)_{t\le 1}$ with $B_0=0$, {\bf E}$B_t=0$, {\bf E}$B_t^2=t$
problems of probability distributions and their characteristics are considered for the variables $$ …
problems of probability distributions and their characteristics are considered for the variables $$ …
Financial crisis dynamics: attempt to define a market instability indicator
The impact of increasing leverage in the economy produces hyperreaction of market
participants to variations of their revenues. If the income of banks decreases, they mass-reduce …
participants to variations of their revenues. If the income of banks decreases, they mass-reduce …
Yield curve smoothing and residual variance of fixed income positions
R Douady - Inspired by Finance: The Musiela Festschrift, 2014 - Springer
We model the yield curve in any given country as an object lying in an infinite-dimensional
Hilbert space, the evolution of which is driven by what is known as a cylindrical Brownian …
Hilbert space, the evolution of which is driven by what is known as a cylindrical Brownian …
The precautionary principle (with application to the genetic modification of organisms)
We present a non-naive version of the Precautionary (PP) that allows us to avoid paranoia
and paralysis by confining precaution to specific domains and problems. PP is intended to …
and paralysis by confining precaution to specific domains and problems. PP is intended to …
Nombre de rotation des difféomorphismes du cercle et mesures automorphes
R Douady, JC Yoccoz - Regular and Chaotic Dynamics, 1999 - mathnet.ru
Dans cet article, nous d efinissons puis etudions les propri et es des mesures automorphes
sous l'action d'un diff eomorphisme du cercle (cf. d efinition ci-dessous). Nous montrons leur …
sous l'action d'un diff eomorphisme du cercle (cf. d efinition ci-dessous). Nous montrons leur …
[HTML][HTML] Systemic risk indicators based on nonlinear polymodel
X Ye, R Douady - Journal of Risk and Financial Management, 2018 - mdpi.com
The global financial market has become extremely interconnected as it demonstrates strong
nonlinear contagion in times of crisis. As a result, it is necessary to measure financial …
nonlinear contagion in times of crisis. As a result, it is necessary to measure financial …
Financial crisis and contagion: A dynamical systems approach
We use a multi-agent-based model to investigate and analyze financial crises where agents
are large aggregates of the economic system under consideration. We analyze financial …
are large aggregates of the economic system under consideration. We analyze financial …