Two decades ago the four authors of the CEPR's first Geneva Report on the World Economy examined the future of the IMF. This year, for the 20th report, they returned to see what progress has been made. Tim Phillips talks to Barry Eichengreen, Charles Wyplosz, José De Gregorio, and Takatoshi Ito about how the IMF has evolved, and the threats both to the IMF and the entire multilateral financial system.