The Federal Reserve on Wednesday expressed confidence that an economic recovery is building, although it said it will keep borrowing costs near zero for "an extended period." Is this good news for investors and the markets? Robert Doll, vice chairman and global chief investment officer of equities at BlackRock, shared his insights.

“Our economy is not functioning normally, and the banking industry is not functioning normally—not lending like the Fed would like to see,” Doll told CNBC.