“…It is now widely acknowledged by academics and policy makers that a macroprudential ideational shift emerged from the financial crash of 2008 (Borio, 2009, Baker, 2013a, Persaud, 2010, Haldane, 2009, Datz, 2013, Goodhart, 2014, Hanson, Kyap and Stein, 2011 denying that individually rational self-interested investment strategies are likely to produce financial stability and equilibrium, identifying finance's inherent procyclical tendencies, the propensity for herd behaviour amongst investors and the destabilising effects of financial complexity (Borio, 2009, Baker, 2013b. The macroprudential ideational shift through its assumptions about the behaviour and properties of financial markets, justifies a regulator intervening with countercyclical policy measures to restrain and direct market activities on a system wide basis.…”