Gordon Brown is a former prime minister of the United Kingdom. Erik Berglof is director of the Institute of Global Affairs of London School of Economics.

This joint letter, an exclusive for Caixin to publish in China, was co-signed by more than 250 former heads of states, leaders of international organizations and leading academics calling on the G-20 leaders to formulate a coordinated response to the Covid-19 medical emergency and economic crisis in emerging and developing economies. Please see a full list of signatories here.