Oct. 21 (Bloomberg) -- Bloomberg View columnist Barry Ritholtz interviews William McNabb, chief executive officer of Vanguard Group. They discuss asset management and the business of running an investment company. This interview aired on Bloomberg Radio. See omnystudio.com/listener for privacy information.

Oct. 7 (Bloomberg) -- Bloomberg View columnist Barry Ritholtz interviews Martin H. Barnes, who is the chief economist at BCA Research. Prior to joining BCA, Mr. Barnes spent 10 years as chief international economist with Wood Mackenzie, one of the top U.K. brokerage firms. From 1973 to 1977 he was an economist with British Petroleum in London. This commentary aired on Bloomberg Radio. See omnystudio.com/listener for privacy information.