Take context from the input text and decide on the accurate relationship between 'Olivier Blanchard' and 'President' from the options provided.
Options: position held, headquarters location, legal form, owned by

Maurice Obstfeld, appointed a member of President Barack Obama’s Council of Economic Advisers in June 2014, will succeed Olivier Blanchard in September as the International Monetary Fund’s chief economist, the Washington-based institution said Monday in an e-mailed statement.
position held