The ‘post consensus’ age has arrived, according to Mercer.In its latest annual thematic outlook, the global Marsh McLennan multi-manager and asset consultant says the investment world now operates in “a landscape in which the norms that guided portfolio construction, risk management, and strategic allocation for decades are being reconsidered, reexamined, and in many cases overturned”.Amid the chaos, the Mercer report has ordered the investment themes for the years ahead into three categories of ‘regime cha ...