Ajay Kapur, the former head of Citigroup Smith Barney’s global equity strategy group in New York, encourages his clients to invest in his “Plutonomy basket” of stocks, featuring companies like Bulgari, Porsche, Four Seasons and Sotheby’s. “If plutonomy continues, which we think it will, if income inequality is allowed to persist and widen, the plutonomy basket should continue to do very well.”