“…Increasingly, academic literature argues that the variations in PPP diffusion and performance across countries is to a considerable extent influenced by the institutional and political context of these countries, leading to weak or strong 'PPPenabling fields' (Delhi, Palukuri, & Mahalingam, 2010;Galilea & Medda, 2010;Jooste, Levitt, & Scott, 2011;Matos-Castañ o et al, 2014;Meunier & Guinet, 2010;Mu, de Jong, & Heuvelhof, 2010). Within economic and sociological neo-institutional theories, institutions are seen as the set of socially constructed frameworks of symbols and resources that both constrains and enables social action (North, 1990;Scott, 2001).…”