BusinessFormer IMF chief Kenneth Rogoff speaks outTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness01/23/2020January 23, 2020Kenneth Rogoff, a professor a former chief of the IMF, spoke to DW about BlackRock's decision to set up a $500 million sustainable investment fund, and the need for big business to change climate policy.https://p.dw.com/p/3WfzFAdvertisement