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.
In the context of the input sentence, determine the relationship between 'Olivier Blanchard' and 'President'.
Options: legal form, position held, headquarters location, owned by