(FILES) In this file photograph taken on August 9, 2016, Governor of The Reserve Bank of India (RBI) Raghuram Rajan gestures as he addresses media representatives at a press conference in Mumbai. India's outgoing central bank chief Raghuram Rajan warned countries against a rush to low interest rates as his tenure as governor of the Reserve Bank of India came to an end. Rajan, who famously predicted the 2008 global financial crisis, told the New York Times that central banks across the world would find it hard to raise rates again for fear this "would see growth slow down". / AFP PHOTO / PUNIT PARANJPEPUNIT PARANJPE/AFP/Getty Images

CALAIS, FRANCE - SEPTEMBER 05: French business owners and locals blockade the main road into the Port of Calais as they wait the arrival of a convoy of trucks protesting against The Jungle migrant camp on September 5, 2016 in Calais, France. Local people and business owners are taking part in the protest, dubbed Operation Escargot, calling for The Jungle camp at the French port to be demolished. Up to 10,000 migrants are now living at the camp and are using desperate and violent measures to try and board trucks heading for the UK. (Photo by Christopher Furlong/Getty Images)

CALAIS, FRANCE - SEPTEMBER 05: French business owners and locals blockade the main road into the Port of Calais as they wait the arrival of a convoy of trucks protesting against The Jungle migrant camp on September 5, 2016 in Calais, France. Local people and business owners are taking part in the protest, dubbed Operation Escargot, calling for The Jungle camp at the French port to be demolished. Up to 10,000 migrants are now living at the camp and are using desperate and violent measures to try and board trucks heading for the UK. (Photo by Christopher Furlong/Getty Images)

CALAIS, FRANCE - SEPTEMBER 05: French businesses owners and locals blockade the main road into the Port of Calais as they wait the arrival of a convoy of trucks protesting against The Jungle migrant camp on September 5, 2016 in Calais, France. Local people and business owners are taking part in the protest, dubbed Operation Escargot, calling for The Jungle camp at the French port to be demolished. Up to 10,000 migrants are now living at the camp and are using desperate and violent measures to try and board trucks heading for the UK. (Photo by Christopher Furlong/Getty Images)

CORRECTION - Brazilian President Michel Temer arrives at the Hangzhou Exhibition Center to participate in the G20 Summit in Hangzhou on September 4, 2016. G20 leaders met under pressure to reboot the world economy, but a stumbling push for a Syria ceasefire and Asia's heated territorial disputes intruded on the summit in Hangzhou. / AFP PHOTO / POOL / Etienne Oliveau / The erroneous mention[s] appearing in the metadata of this photo by Etienne Oliveau has been modified in AFP systems in the following manner: [September 4] instead of [September 5]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.ETIENNE OLIVEAU/AFP/Getty Images

CORRECTION - French President Francois Hollande (L) arrives at the Hangzhou Exhibition Center to participate in the G20 Summit in Hangzhou on September 4, 2016. G20 leaders met under pressure to reboot the world economy, but a stumbling push for a Syria ceasefire and Asia's heated territorial disputes intruded on the summit in Hangzhou. / AFP PHOTO / POOL / Etienne Oliveau / The erroneous mention[s] appearing in the metadata of this photo by Etienne Oliveau has been modified in AFP systems in the following manner: [September 4] instead of [September 5]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.ETIENNE OLIVEAU/AFP/Getty Images

CORRECTION - Laos President Bounnhang Vorachith (C) arrives at the Hangzhou Exhibition Center to participate in the G20 Summit in Hangzhou on September 4, 2016. G20 leaders met under pressure to reboot the world economy, but a stumbling push for a Syria ceasefire and Asia's heated territorial disputes intruded on the summit in Hangzhou. / AFP PHOTO / POOL / Etienne Oliveau / The erroneous mention[s] appearing in the metadata of this photo by Etienne Oliveau has been modified in AFP systems in the following manner: [September 4] instead of [September 5]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.ETIENNE OLIVEAU/AFP/Getty Images

CORRECTION - US President Barack Obama arrives at the Hangzhou Exhibition Center to participate in the G20 Summit in Hangzhou on September 4, 2016. G20 leaders met under pressure to reboot the world economy, but a stumbling push for a Syria ceasefire and Asia's heated territorial disputes intruded on the summit in Hangzhou. / AFP PHOTO / POOL / Etienne Oliveau / The erroneous mention[s] appearing in the metadata of this photo by Etienne Oliveau has been modified in AFP systems in the following manner: [September 4] instead of [September 5]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.ETIENNE OLIVEAU/AFP/Getty Images