From left to right, Christine Lagarde, managing director of the International Monetary Fund (IMF), Kristalina Georgieva, chief executive officer of the World Bank Group, Lesetja Kganyago, governor of South Africa's reserve bank, Haruhiko Kuroda, governor of the Bank of Japan (BOJ), and Mariana Mazzucato, professor of economics at University College London, take part in a panel session on the closing day of the World Economic Forum (WEF) in Davos, Switzerland, on Friday. (Bloomberg)