David Shapiro on dumping Aspen, turbulent markets and Stellenbosch Mafia

In the country's latest bestseller, author Pieter du Toit tracks the first public mention of "The Stellenbosch Mafia" back to a decade and a half back when David Shapiro used the reference in one of our interviews. But as SA's favourite market commentator used it in a benign, almost admiring way - a far cry from the unlamented ex-Bell Pottinger inspired campaign which painted them as a malignant force of greedy Hoggenheimers. On Rational Radio this week Shapiro offers his perspectives on the Stellenbosch-based billionaires, what is causing renewed volatility in global investment markets - and why long-suffering Aspen shareholders should now dump the stock. - Alec Hogg