Over the last four decades, several estimation issues of the beta have been discussed extensively in many articles. An emerging consensus is that the betas are time-dependant and their estimates are impacted by the return interval and the length of the estimation period. These findings lead to...

La relation entre le Système Communautaire d’Echange de Quotas d’Emission (SCEQE) et le Mecanisme de Développement Propre (MDP) intéresse aujourd’hui de nombreux pays du monde. Le MDP est considéré comme l’un des principaux outils qui permet aux pays d’augmenter leur rentabilité...

In this paper, following the notion of probabilistic risk adjusted performance measures; we introduce that of fuzzy risk adjusted measures (FRAM). In order to deal efficiently with the closing-based returns bias induced by market microstructure noise, as well as to handle their uncertain...

Following Milanovic's (1997) paper [Economics Letters, vol. 56, p. 45-49], we propose a simple way to compute the Gini index when income y is a quadratic function of its rank among n individuals.