This paper considers the role of the company in its virtual community and gives evidence for the importance of its collaboration with members. From a data collecting from 342 members of virtual communities of support initiated by companies, the paper shows that the collaboration of the company...

Cet article considère le rôle entrepris par l’entreprise dans sa communauté virtuelle et met en évidence l’importance de sa collaboration avec les membres. A partir d’une collecte de données sur 342 membres de communautés virtuelles de support initiées par les entreprises,...

Price regulation and competition patterns in the ethical drug industry in france This article gives the results of an econometric modelization of the ethical drugs price and quantity determination institutionnal process for France. From price and promotion elasticities, it is shown that...

Efficiency of financial markets is one of the most studied subjects in theoretical finance. Formalization of this idea is realised by the random walk model. Numerous tests have been developed to validate the hypothesis of identically and independently distributed innovations. But the results of...

Management control practices are influenced by different professional groups, their interpretations and power struggles. We study a company whose strategy and daily management rely on non financial stakes, notably upon the concept of “brand”. We show how management accountants introduce a...

Les nations du sud de la zone Euro ont connu la prospérité dans les années qui ont suivi la création de la monnaie unique. Le bond de la consommation et l’élévation du niveau de vie se sont hélas révélés être des mirages. En favorisant un endettement massif, l’Euro a encouragé un...

When rates of return on bonds are computed over extremely short holding periods, the ex post cross-sectional relationship between realized return and risk is linear. It is therefore possible, at any time, to extrapolate the cross-sectional relationship to a zero risk level, and thus to determine...