Markets makers quote many option categories in terms of implicit volatility. In doing so, they can reactivate the Black and Scholes model which assumes that the volatility of an option underlying is constant while it is highly variable. First of all, this article, whose purpose is very...

In this paper, we try to build an efficient portfolio among four possible portfolios based on the some 31 Casablanca listed shares. Our analysis concerns the risk which arises from the Markowitz mean-variance approach. Our work method will be implemented as following: first of all, we will test...

The performance measurement of portfolio managers is a topic of major importance in finance. The utility of performance measures rests, indeed, on the hypothesis that funds whose performance is judged " good " (or " bad ") in the past, will continue to display of good (bad) performances in the...

The financial market interest several researchers, especially in the domain of assessment of the financial assets and their performances. The previous research identified several anomalies of the market, as size, Monday, January, PER effects, etc. putting in question the notion of market...

The management of financial risks, which is a branch of financial theory, is defined as a process that begins with risk factors identification, continues with measurement of risk and concludes with the coverage of that risk. This work focuses on the second phase of management process, namely the...

The West African Regional Securities Exchange (BRVM) is the common financial center for eight countries of the West African Economic and Monetary Union (WAEMU). It began its activities on 18th September 1998 and has undergone significant changes over the last three years (continuous quotation,...

The financial market interest several researchers, especially in the domain of assessment of the financial assets and their performances. The previous research identified several anomalies of the market, as size, Monday, January, PER effects, etc. putting in question the notion of market...

The financial market interest several researchers, especially in the domain of assessment of the financial assets and their performances. The previous research identified several anomalies of the market, as size, Monday, January, PER effects, etc. putting in question the notion of market...

Black et Scholes ont proposé en 1973 un modèle de marché financier qui conduit à une formule simple pour calculer le prix d'une option européenne sur un actif boursier. Bien que les formules de Black-Scholes soient explicites, le modèle repose sur certaines hypothèses qui ne correspondent...

The analysts and evaluators in the financial market needs to risk free rate return (RFRR) to take the financing and investment decisions. This paper aims to study and analyze the causal relationship between Euribor rate and stock prices in the Arab stock exchanges, at level of nine Arab stock...