“…That is, certain groups of actors may promote certain options without regard for their impact on other elements of a mix-for example when forest companies advocate for greater cut allotments without taking into account their impact on fisheries or endangered species-and when historical problems of policy legacies exist in a sector (Kiss, Manchón, & Neij, 2012). Older programmes and policies which have conferred benefits on certain actors, for example, can make it very costly to shift to other arrangements (Anderson et al, 2010) and many existing mixes have developed haphazardly through processes of policy layering, in which new tools and objectives have been piled on top of older ones, creating a palimpsest-like mixture of inconsistent and incoherent policy elements (Carter, 2012;Thelen, 2004;van der Heijden, 2011). Factors such as increasing efforts to promote collaborative or horizontal governance arrangements also affect the number of multi-sectoral and multipolicy situations which exist (Peters, 1998) and raise the issue of policy integration to the forefront of policy design considerations.…”