Résumé
Long run returns of IPO firms' recommendations in Europe reveal possible conflicts of interest and pressures faced by financial analysts over the 1991-2005 period. Nevertheless, recent European legislations about investment research have led to better long run performance of IPO firms' recommendations issued by affiliated analysts over the 2001-2005 period. Findings reveal that market participants do not fully incorporate the perceived value of recommendations. Indeed, difference between affiliated and unaffiliated analysts' recommendations is statistically significant over one, three or five year horizon. The timing of recommendations specifies that investors pay more attention to affiliated analysts' recommendations made later in the aftermarket. This result could suggest that the later is the recommendation made in the IPO aftermarket the weaker is the pressure faced by affiliated analysts