Federal Reserve Board Chairman Jerome Powell, former European Central Bank (ECB) President Jean-Claude Trichet, International Monetary Fund (IMF) Deputy Managing Director David Lipton and French Finance Minister Bruno Le Maire attend a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Federal Reserve Board Chairman Jerome Powell, former European Central Bank (ECB) President Jean-Claude Trichet, International Monetary Fund (IMF) Deputy Managing Director David Lipton and French Finance Minister Bruno Le Maire attend a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Governor of the Bank of France Francois Villeroy de Galhau, World Bank President David Malpass, Federal Reserve Board Chairman Jerome Powell and former European Central Bank (ECB) President Jean-Claude Trichet attend a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

World Bank President David Malpass talks with former European Central Bank (ECB) President Jean-Claude Trichet during a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Bank of England governor Mark Carney talks with former European Central Bank (ECB) President Jean-Claude Trichet during a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Bank of England governor Mark Carney talks with former European Central Bank (ECB) President Jean-Claude Trichet during a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Former European Central Bank (ECB) President Jean-Claude Trichet attends a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Former European Central Bank (ECB) President Jean-Claude Trichet attends a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Governor of the Bank of France Francois Villeroy de Galhau, Federal Reserve Board Chairman Jerome Powell and former European Central Bank (ECB) President Jean-Claude Trichet attend a conference entitled "Bretton Woods: 75 years later" in Paris, France, July 16, 2019. REUTERS/Philippe Wojazer 

Former European Central Bank (ECB) President Jean-Claude Trichet delivers a speech during a ceremony to mark the 20th anniversary of the launch of the Euro, at the European Parliament in Strasbourg, France, January 15, 2019. REUTERS/Vincent Kessler 

Former European Central Bank (ECB) President Jean-Claude Trichet delivers a speech during a ceremony to mark the 20th anniversary of the launch of the Euro, at the European Parliament in Strasbourg, France, January 15, 2019. REUTERS/Vincent Kessler 

Tarek Al-Wazir, Deputy Minister-President and Minister of Economics, Energy, Transport and Regional Development of Hesse state, European Central Bank (ECB) President Mario Draghi and Peter Feldmann Lord Mayor of Frankfurt (L-R) cut the ceremonial tape during the inauguration of the ECB's new headquarters in Frankfurt March 18, 2015. The ceremonial opening of the 1.3-billion-euro ($1.4-billion) 185-meter high skyscraper building took place on Wednesday. Background left is former lord mayor of Frankfurt Petra Roth and background right is Jean-Claude Trichet, former ECB president. REUTERS/Wolfgang Rattay (GERMANY - Tags: BUSINESS TPX IMAGES OF THE DAY)

European Central Bank (ECB) President Mario Draghi and Tarek Al-Wazir, Deputy Minister-President and Minister of Economics, Energy, Transport and Regional Development of Hesse state (L) cut the ceremonial tape during the inauguration of the ECB's new headquarters in Frankfurt March 18, 2015. The ceremonial opening of the 1.3-billion-euro ($1.4-billion) 185-meter high skyscraper building took place on Wednesday. Background left is former lord mayor of Frankfurt Petra Roth and background right is Jean-Claude Trichet, former ECB president. REUTERS/Wolfgang Rattay (GERMANY - Tags: BUSINESS TPX IMAGES OF THE DAY)

Jean-Claude Trichet, former European Central Bank (ECB) president arrives for the inauguration of the ECB's new headquarters in Frankfurt March 18, 2015. Thousands of anti-capitalist protesters clashed with riot police near the new headquarters of the European Central Bank (ECB) in Frankfurt on Wednesday, hours before the ceremonial opening of the 1.3-billion-euro ($1.4-billion) building. REUTERS/Wolfgang Rattay (GERMANY - Tags: BUSINESS CITYSCAPE)

Former European Central Bank (ECB) President Jean-Claude Trichet attends a conference of central bankers hosted by the Bank of France in Paris November 7, 2014. REUTERS/Charles Platiau (FRANCE - Tags: BUSINESS HEADSHOT) 

European Central Bank (ECB) President Mario Draghi and former ECB President Jean-Claude Trichet (L) attend a conference for the 20th anniversary of the establishment of the European Monetary Institute, in Brussels February 12, 2014. Draghi said on Wednesday the new pan-European banking supervisor will be able to prick localised asset bubbles, if necessary. REUTERS/Francois Lenoir (BELGIUM - Tags: BUSINESS) 

(L-R) Former European Central Bank (ECB) President Jean-Claude Trichet, Bank of France Governor Christian Noyer and International Monetary Fund (IMF) Chief Economist Olivier Blanchard attend a forum organised by Mexico's Central Bank in Mexico City October 14, 2013. Central bankers from around the world are set to attend the two-day forum. REUTERS/Tomas Bravo (MEXICO - Tags: BUSINESS) 

Jean-Claude Trichet, former European Central Bank President and former governor of Banque De France, speaks at a seminar in Kuwait hosted by the National Bank of Kuwait April 10, 2012. REUTERS/Stephanie McGehee (KUWAIT - Tags: POLITICS BUSINESS) 

Jean-Claude Trichet, former European Central Bank President and former governor of Banque De France, speaks at a seminar in Kuwait hosted by the National Bank of Kuwait April 10, 2012. REUTERS/Stephanie McGehee (KUWAIT - Tags: POLITICS BUSINESS) 

Jean-Claude Trichet (C), former European Central Bank President and former governor of Banque De France, stands next to National Bank of Kuwait Group Chief Executive Ibrahim Dabdoub (R), former Minister of Foreign Affairs Sheikh Mohammed Salem Alsabah (L), Abdullatif al Hamad (2nd L), director general and chairman of the Arab Fund for Economic and Social Development, and Fahd al Rajan, former head of Public Institute of Social Security, at the bank's headquarters in Kuwait City April 10, 2012. Trichet will speak at a seminar hosted by the bank. REUTERS/Stephanie McGehee (KUWAIT - Tags: POLITICS) 

Eurogroup Chairman and Luxembourg's Prime Minister Jean-Claude Juncker, (R) and former European Central Bank President Jean-Claude Trichet (L) attend a conference organised by EU40, a network of members of the European parliament addressing those under 40 years of age, at the European parliament in Brussels March 27, 2012. The group held a debate on the eurozone crisis and its aftermath. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS) 

Former European Central Bank President Jean-Claude Trichet (L) attends a conference organised by EU40, a network of members of the European parliament addressing those under 40 years of age, with Eurogroup Chairman and Luxembourg's Prime Minister Jean-Claude Juncker (R) at the European parliament in Brussels March 27, 2012. The group held a debate on the eurozone crisis and its aftermath. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS) 

Eurogroup Chairman and Luxembourg's Prime Minister Jean-Claude Juncker, (R) and former European Central Bank President Jean-Claude Trichet (L) attend a conference organised by EU40, a network of members of the European parliament addressing those under 40 years of age, at the European parliament in Brussels March 27, 2012. The group held a debate on the eurozone crisis and its aftermath. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS) 

Eurogroup Chairman and Luxembourg's Prime Minister Jean-Claude Juncker, (R) and former European Central Bank President Jean-Claude Trichet (L) attend a conference organised by EU40, a network of members of the European parliament addressing those under 40 years of age, at the European parliament in Brussels March 27, 2012. The group held a debate on the eurozone crisis and its aftermath. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS) 

Eurogroup Chairman and Luxembourg's Prime Minister Jean-Claude Juncker (R) and former European Central Bank President Jean-Claude Trichet (L) attend a conference organised by EU40, a network of members of the European Parliament addressing those under 40 years of age, at the European parliament in Brussels March 27, 2012. The group held a debate on the eurozone crisis and its aftermath. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS) 

Eurogroup Chairman and Luxembourg's Prime Minister Jean-Claude Juncker, (R) and former European Central Bank President Jean-Claude Trichet (L) attend a conference organised by EU40, a network of members of the European parliament addressing those under 40 years of age, at the European parliament in Brussels March 27, 2012. The group held a debate on the eurozone crisis and its aftermath. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS) 

Former European Central Bank head Jean Claude Trichet attends a Federal Reserve Board-International Journal of Central Banking conference on "Central Banking: Before, During, and After the Crisis" at a hotel in Washington, March 23, 2012. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS) 

Former European Central Bank President Jean-Claude Trichet attends a session at the World Economic Forum (WEF) in Davos, January 27, 2012. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS BUSINESS)

Former European Central Bank President Jean-Claude Trichet attends a session at the World Economic Forum (WEF) in Davos, January 27, 2012. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS BUSINESS)

Former European Central Bank President Jean-Claude Trichet delivers a speech at the European People's Party (EPP) congress in Marseille, December 8, 2011. The EPP Congress in Marseille will debate the document 'Moving Europe forward' in preparation of the European Council summit in Brussels. REUTERS/Philippe Laurenson (FRANCE - Tags: BUSINESS POLITICS) 

Former European Central Bank President Jean-Claude Trichet delivers a speech at the European People's Party (EPP) congress in Marseille, December 8, 2011. The EPP Congress in Marseille will debate the document 'Moving Europe forward' in preparation of the European Council summit in Brussels. REUTERS/Philippe Laurenson (FRANCE - Tags: BUSINESS POLITICS) 

European Central Bank President Jean-Claude Trichet leaves a euro zone leaders summit in Brussels October 27, 2011. Euro zone leaders said on Thursday they had reached agreement on a comprehensive package of measures to tackle the euro zone's sovereign debt crisis. REUTERS/Francois Lenoir (BELGIUM - Tags: POLITICS BUSINESS) 

European Central Bank (ECB) President Jean-Claude Trichet waves as he leaves a euro zone leaders summit in Brussels October 27, 2011. Euro zone leaders said on Thursday they had reached agreement on a comprehensive package of measures to tackle the euro zone's sovereign debt crisis. REUTERS/Francois Lenoir (BELGIUM - Tags: POLITICS BUSINESS) 

European Central Bank (ECB) President Jean-Claude Trichet waves as he leaves a euro zone leaders summit in Brussels October 27, 2011. Euro zone leaders said on Thursday they had reached agreement on a comprehensive package of measures to tackle the euro zone's sovereign debt crisis. REUTERS/Francois Lenoir (BELGIUM - Tags: POLITICS BUSINESS) 

European Central Bank President Jean-Claude Trichet leaves a euro zone leaders summit in Brussels October 27, 2011. REUTERS/Francois Lenoir (BELGIUM - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet arrives to deliver a speech at Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. In a speech entitled "Tomorrow and the day after Tomorrow: A Vision for Europe", the outgoing European Central Bank president said euro zone states should examine all aspects of each others' economic policies. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

People hold banners as former ECB President Jean-Claude Trichet (not pictured) delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. In a speech entitled "Tomorrow and the day after Tomorrow: A Vision for Europe", the outgoing European Central Bank president said euro zone states should examine all aspects of each others' economic policies. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. In a speech entitled "Tomorrow and the day after Tomorrow: A Vision for Europe", the outgoing European Central Bank president said euro zone states should examine all aspects of each others' economic policies. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Former ECB President Jean-Claude Trichet delivers a speech at the Humboldt University in Berlin, October 24, 2011. Euro zone authorities should in future have greater powers to influence the economic policies of countries in the bloc if a member persistently fails to meet economic targets, Trichet said on Monday. In a speech entitled "Tomorrow and the day after Tomorrow: A Vision for Europe", the outgoing European Central Bank president said euro zone states should examine all aspects of each others' economic policies. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS BUSINESS) 

Germany's Chancellor Angela Merkel (L) IMF President Christine Lagarde (C) and European Central Bank President Jean-Claude Trichet attend a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

Germany's Chancellor Angela Merkel (L) IMF President Christine Lagarde (C) and European Central Bank President Jean-Claude Trichet attend a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

IMF President Christine Lagarde (L) and European Central Bank President Jean-Claude Trichet (R) attend a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

Germany's Chancellor Angela Merkel (L) speaks with other leaders including Finland's Prime Minister Jyrki Katainen (2L), Luxembourg's Prime Minister Jean-Claude Juncker (C) European Central Bank President Jean-Claude Trichet (2R) and Netherlands' Prime Minister Mark Rutte (R) at the euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) European Commission President Jose Manuel Barroso (L), Germany's Chancellor Angela Merkel (C) and European Central Bank President Jean-Claude Trichet (R) attend a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) Germany's Chancellor Angela Merkel, Ireland's Prime Minister Enda Kenny, Finland's Prime Minister Jyrki Katainen, European Central Bank President Jean-Claude Trichet and Netherlands' Prime Minister Mark Rutte talk together at the start of a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

European Central Bank President Jean-Claude Trichet and Spain's Prime Minister Jose Luis Rodriguez Zapatero attend the euro zone summit in Brussels, October 23, 2011. The European Union's leaders are meeting to hammer out a comprehensive plan for tackling the euro zone debt crisis, but a breakthrough is not expected until another summit on Wednesday. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

Germany's Chancellor Angela Merkel (L) speaks with other leaders including Ireland's Prime Minister Enda Kenny (2L) Finland's Prime Minister Jyrki Katainen, European Central Bank President Jean-Claude Trichet (2R) and Netherlands' Prime Minister Mark Rutte (R) at the euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) Belgium's Prime Minister Yves Leterme, Germany's Chancellor Angela Merkel, Finland's Prime Minister Jyrki Katainen, European Central Bank President Jean-Claude Trichet and Netherlands' Prime Minister Mark Rutte talk together at the start of a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) Belgium's Prime Minister Yves Leterme, Greece's Prime Minister George Papandreou, Germany's Chancellor Angela Merkel, Finland's Prime Minister Jyrki Katainen, European Central Bank President Jean-Claude Trichet and Netherlands' Prime Minister Mark Rutte attend a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) Belgium's Prime Minister Yves Leterme, Germany's Chancellor Angela Merkel, Finland's Prime Minister Jyrki Katainen, Luxembourg's Prime Minister Jean-Claude Juncker, European Central Bank President Jean-Claude Trichet and Netherlands' Prime Minister Mark Rutte talk together at the start of a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) Greece's Prime Minister George Papandreou, European Commission President Jose Manuel Barroso, Belgium's Prime Minister Yves Leterme, Germany's Chancellor Angela Merkel, Finland's Prime Minister Jyrki Katainen, European Central Bank President Jean-Claude Trichet and Netherlands' Prime Minister Mark Rutte talk together at the start of a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

(L to R) Greece's Prime Minister George Papandreou, Belgium's Prime Minister Yves Leterme, Germany's Chancellor Angela Merkel, Finland's Prime Minister Jyrki Katainen, European Central Bank President Jean-Claude Trichet and Netherlands' Prime Minister Mark Rutte talk together at the start of a euro zone summit in Brussels October 23, 2011. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)

European Central Bank President Jean-Claude Trichet arrives at the European Union summit in Brussels October 23, 2011. The EU leaders are meeting to hammer out a comprehensive plan for tackling the euro zone debt crisis, but a breakthrough is not expected until another summit on Wednesday. REUTERS/Sebastien Pirlet (BELGIUM - Tags: POLITICS BUSINESS) 

European Central Bank President Jean-Claude Trichet arrives at the European Union summit in Brussels October 23, 2011. The EU leaders are meeting to hammer out a comprehensive plan for tackling the euro zone debt crisis, but a breakthrough is not expected until another summit on Wednesday. REUTERS/Sebastien Pirlet (BELGIUM - Tags: POLITICS BUSINESS) 

Portugal's Finance Minister Vitor Gaspar (L) talks with outgoing European Central Bank President Jean-Claude Trichet at the start of an EU finance ministers meeting in Brussels October 22, 2011. The Eurogroup of euro zone finance ministers has approved the payment of the next tranche of 8 billion euros ($11 billion) under Greece's EU/IMF bailout programme -- pending approval from the International Monetary Fund, the ministers said in a statement on Friday. REUTERS/Thierry Roge (BELGIUM - Tags: POLITICS BUSINESS)