Some say back to the drachma for a Greek reboot

Greece's economy is so depressed, they argue, that unless it regains the competitive edge a massive one-off currency devaluation could offer, it will remain lifeless. Roger Bootle, the founder of London-based markets and economic analysis group Capital Economics, won an economics prize of 250,000 pounds ($395,000) three years ago for drawing up a guide on how an ailing nation would exit the euro.