“…But such an assessment is severely complicated by the difficulty of measuring both concepts, and by their variation within agencies and over time, not least because of their mutual interdependence (Waterman and Meier, 1998). This article explores an alternative perspective on aid effectiveness as both a highly complex problem and one that is deeply and unavoidably political (see, for example, Killick, 2004;Hyden, 2008;Haymen, 2009;Booth, 2011). It does so by exploring how, and how well, donor activities are informed by effective political-economy analysis (PEA).…”