Tchatoka, Doko; Sabro, Firmin; Dufour, Jean-Marie - Volkswirtschaftliche Fakultät, … - 2008
the first setup, we show that both test procedures are in general consistent against the presence of invalid instruments … the same as in the case of valid instruments (despite the presence of invalid instruments). Overall, our results … underscore the importance of checking for the presence of possibly invalid instruments when applying “identification …