Seventeen years after receiving his MBA from the John M. Olin School of Business at Washington University in St. Louis, Todd Loudenslager was back at school last month. The senior risk officer at US Bancorp’s consumer bank, now 51, was taking part in Kellogg School of Management’s Post-MBA programme.

The Kellogg programme is claimed to be the only one of its kind in the world – a three-week course, just for MBAs, that enables participants to catch up on developments in the business world and management thinking in the decade or more since they received their qualification, and brush up their leadership skills.