The chief executive of BlackRock Inc (BLK.N), the world’s largest money manager, said on Tuesday that China will need to continue to reform its capital markets to avert what he called boom and bust scenarios. “It is our strong belief that China needs more robust capital markets,” CEO Larry Fink said at a Credit Suisse conference in Singapore. “And by having a more robust capital market, it will mean we’ll have less boom bust. “China needs to expand its capital markets.