Rast, D.E.

leadership identity group leader relationship van knippenberg research organization theory psychology knippenberg collaboration uncertainty support member relation analysis process trust journal rhetoric leadership style identity theory prototypicality review management boundary sense superordinate identity press erasmus university boundary-spanning leadership coalition university e ffect leadership research style challenge people example coalition self-uncertainty group identity boundary-spanning follower perception effectiveness behavior ingroup building 2012 hogg transference superordinate leader rhetoric group members proposition development situation performance outgroup academy uncertainty-identity theory management review leadership e ffectiveness focus variable science effort signi leader prototypicality problem erasmu non-autocratic leadership effectiveness similarity model attempt participant influence handbook conflict