New President of the European Central Bank (ECB) Christine Lagarde writes her signature on a 20 Euro display banknote at the ECB headquarters in Frankfurt, Germany, Nov. 27, 2019. Christine Lagarde on Wednesday signed euro banknotes, vowing to nurture and sustain EU citizens' trust in the single currency. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. (Angela Morant/ECB/Handout via Xinhua)