He is the former economics professor behind an upstart bank that rode the Greek boom to become a publicly listed heavyweight with a loan book of over 35 billion euros. She is his devoted wife, who oversees the bank's sponsorship of museums and the arts, and advised it on corporate social responsibility. Michalis Sallas, executive chairman of Piraeus Bank, Greece's fourth largest, and Sophia Staikou are a Greek power couple, symbols of the fast-growth years after the country joined the euro in 2001. But an investigation of public documents, including financial statements and property records, shows the couple may also ... (full story)