Billionaire Marc Lasry, co-founder of Avenue Capital Group, said uncertainty over Donald Trump's policies, particularly tariffs, was holding back investors who wanted to take advantage of market opportunities. When the market doesn't know what to do, that's a problem, Lasry, 65, told New York University's Credit Opportunity Symposium on Friday. In such a situation, an economy is not immune, and that just slows everything down and can tip the economy into recession. (Jin Ten)