CHICAGO--(BUSINESS WIRE)--Nuveen Asset Management, a multi-asset class affiliate of Nuveen Investments, today announced Chief Equity Strategist and Senior Portfolio Manager Bob Doll has released his mid-year investment outlook. The U.S. economy is coming off of a bumpy first quarter and is likely to face a measure of volatility from abroad and in response to the widely anticipated start of interest rate hikes from the Federal Reserve. Despite that backdrop, Doll believes that the market is at a