Sarasin investment chief Guy Monson has gone into orbit with his view that there has rarely, if ever, been a better time to feast on global large cap stocks.

In his latest strategy note for the Swiss private bank, Monson says: "Buy corporate cashflow, it has rarely been this cheap." Citing financial problems in Europe and evidence of returning Japanese deflation, he says ultra-loose monetary conditions will remain in place across the developed world for longer than any of us have been expecting.