Gian Carlo Nucci

Wal-Mart Stores, Inc. (NYSE: WMT) said Friday the head of its Chilean unit will retire in June. Gian Carlo Nucci, currently chief executive of Wal-Mart Chile, will be replaced by Horacio Barbeito who now heads Wal-Mart Argentina. As of the end of fiscal 2014, 380 of Wal-Mart's 6,107...