1 INTRODUCTION Power is an important motivating force in human interactions (Thibaut & Kelley, 1959; Turner, 2005) influencing decisions in organisational (Moskowitz et al., 1994; Goodwin et al., 2000), political (Nullmeier & Pritzlaff, 2010), consumer (Rucker & Galinsky, 2008) and interpersonal contexts (Richeson & Ambady, 2003).