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...

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...

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...

Asymmetric information and fear of acquiring a 'lemon' may explain the paucity of foreign investment in emerging market economies. If investors are uncertain about the profitability of investments, intrinsically inefficient, temporary partnerships or joint ventures may serve as mechanisms...

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Winter-rapporten identificerer to grundlæggende principper. 1) Proportionalitetsprincippet: Der skal være proportionalitet mellem den ultimative økonomiske risiko, som investorer påtager sig, og den kontrol disse opnår i virksomheden. 2) Aktionærprincippet: I tilfælde af et...

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