The aim of this article is to summarize exhaustively and concisely, the different methodologies for estimating the volatility that has been proposed for the real options approach (ROA), and also provide a theoretical and practical explanation for estimating an unbiased volatility and...

The valuation of options and to a large extent the financial derivatives market require an optimal estimation of the volatility, since this is precisely the variable that is negotiated. We present then a statistical methodology for the estimation of the volatility parameter for an asset using...

Recent evidence on bond markets suggests that there are risk factors underlying changes in interest rate derivatives prices that are independent of those underlying shifts in the yield curve. The presence of unspanned factors seems puzzling because derivatives are based on the underlying...

The volume of transaction varies according to several factors. Of a point of view of the behavioural finance, a high level of this last can be assigned to a phenomenon of overconfidence or a disposition effect. This paper studies these two phenomena as well as the one of the asymmetry of the...