Showing 1 - 10 of 62
L'objectif de cet article est de confronter deux mesures classiques du risque de défaillance de l'émetteur, la notation et l'écart de rentabilité. La première est attribuée par des agences spécialisées dans cette activité (Standard and Poor's et Moody's) alors que la seconde résulte du...
Persistent link: https://www.econbiz.de/10009002004
The problem of fair pricing of contingent claims is well understood in the contex of an arbitrage free, complete financial market, with perfect information : the so-called arbitrage approach permits to construct a unique valuation operator compatible with observed price rocesses. In the more...
Persistent link: https://www.econbiz.de/10008832173
Testing for normality is of paramount importance in many areas of science since the Gaussian distribution is a key hypothesis in many models. As the use of semi–moments is increasing in physics, economics or finance, often to judge the distributional properties of a given sample, we propose a...
Persistent link: https://www.econbiz.de/10008532562
We prove a general version of the super-replication theorem, which applies to Kabanov’s model of foreign exchange markets under proportional transaction costs. The market is described by a matrix-valued càdlàg bid-ask process $$(\Pi_t)_{t\in [0,T]}$$ evolving in continuous time. We propose a...
Persistent link: https://www.econbiz.de/10008790064
When the markets are dynamically complete and without imperfections there are three equivalent approaches in order to price a given asset : the arbitrage approach through the existence of a risk-neutral density, the utility approach through a utility maximization program and the equilibrium...
Persistent link: https://www.econbiz.de/10008800246
L'objectif de cet article est d'étudier le processus de construction sociale d'un nouveau marché financier. L'analyse qualitative longitudinale menée sur la période 1996-2005 concerne le développement du marché des dérivés de crédit, marché de gré à gré transnational. Comment ce...
Persistent link: https://www.econbiz.de/10008832185
Asymmetric volatility in equity markets has been widely documented in finance, where two competing explanations, as considered in Bekaert and Wu (2000), are the financial leverage and the volatility feedback hypothesis. We explicitly test for the role of both hypotheses in explaining extreme...
Persistent link: https://www.econbiz.de/10008572190
L'étude du modèle à trois facteurs en présence des comoments d'ordres trois et quatre dans le cadre du marché français fait l'objet de cet article. Le pouvoir explicatif des portefeuilles de marché, HML et SMB est testé en présence des portefeuilles de co-skewness et de co-kurtosis. À...
Persistent link: https://www.econbiz.de/10008520040
Abstract This paper studies the dynamics of the IPO (Initial Public Offering) market and its effect on real investment decisions in emerging industries. We first propose a model of IPOs cycle based on divergence of opinion among investors and short-sale constraints. Using a real option...
Persistent link: https://www.econbiz.de/10008529683
L'étude du modèle à trois facteurs en présence des comoments d'ordres trois et quatre dans le cadre du marché français fait l'objet de cet article. Le pouvoir explicatif des portefeuilles de marché, HML et SMB est testé en présence des portefeuilles de co-skewness et de co-kurtosis. À...
Persistent link: https://www.econbiz.de/10008532461