“…The following propositions command broad assent: institutions are systems of norms or rules that set prescriptive standards for behaviour (Greif, 2006; Hodgson, 2006; North, 1990); they are characterised by varying degrees of formality, ranging from formal legal rules at one extreme to social norms and conventions at the other (Ostrom, 2005); they are functional, by virtue of reducing transaction costs associated with production and exchange (Coase, 1988; Williamson, 1985); they both reflect behaviour, in the sense of being endogenous to their context or environment over the long term (Aoki, 2007, 2010) and shape it, in the sense of constraining or channelling agents’ choices or options in the short term (North, 1990); they are stable while also displaying adaptive or evolutionary tendencies (Hodgson, 2006); they change over time but cannot straightforwardly be redesigned through conscious action (Voigt, 2013). There is also an emerging consensus around the basic elements of an integrated theory of institutions and institutional change: this would combine an analysis of micro-level interactions of agents based on evolutionary and epistemic game theory, with an understanding of the emergent properties of macro-level structures, drawing on the theory of complex systems (Aoki, 2010; Gindis, 2009; Hédoin, 2012).…”