What is the relationship between Olivier Blanchard and President in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

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.

Answer: position_held