The existence of influence among participants on financial markets is affirmed by the theory of behavioural finance through the consideration of sociological aspects. The aim of this paper is to empirically contrast two kinds of social influence, namely herding and individual social interaction....

What is the mechanism that determines market prices of financial assets? The literature of modern finance theory brought out models in order to propose an answer to this question. These models presume that all market participants act strictly rationally. With this very restrictive assumption,...