I claim that scope interactions provide empirical evidence in order to establish the argument structure of the causative construction in Romance languages. Since quantifier raising adjoins a quantified argument to vP, quantified arguments interact differently if they are coarguments than if they are not. Thus, scope interactions are able to give indications on what arguments in a causative structure belong to the same vP, and, as a consequence, how vPs may occur in a causative structure. The data I discuss shows that in Romance causative structures the causee and the internal argument (if any)