It's All Greek to Him

Five years ago, Chobani didn't exist. Now it's a billion-dollar business. How the son of a small-town shepherd made good.

Esther Duflo

Esther Duflo is pioneering a new form of development economics. Daniel Gross reports.

Meet the New Boss

Showman, lawyer, quant, jock. Daniel Gross on Citigroup's continuing parade of CEOs, who always seem to be fighting the last battle.