(L-R) President of Asian Infrastructure Investment Bank (AIIB) Jin Liqun, Secretary General of the Organisation for Economic Co-operation and Development (OECD) Angel Gurria and U.S. Secretary of the Treasury Jack Lew and Britain's Chancellor of the Exchequer George Osborne attend a group photo session during the G20 finance ministers and central bank governors meeting in Shanghai, China February 27, 2016. REUTERS/Aly Song