Maurice Obstfeld, a member of President Barack Obama’s Council of Economic Advisers, will become the International Monetary Fund’s chief economist in September.

(Bloomberg) — A White House adviser who co-wrote an international economics textbook with Nobel laureate Paul Krugman was named the next research director of the IMF.

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.

Obstfeld, who like Blanchard earned a doctorate from the Massachusetts Institute of Technology in the late 1970s, has been on leave from his position as an economics professor at the University of California at Berkeley while serving in the administration. Blanchard’s departure was announced in May.

Obstfeld co-wrote the “International Economics” textbook with Krugman and Marc Melitz, and “Foundations of International Macroeconomics” with Kenneth Rogoff, another former IMF chief economist.

Obstfeld previously served as an honorary adviser to a Bank of Japan institute on monetary and economic studies, according to the IMF’s statement. His research has focused on exchange rates, international financial crises, global capital markets and monetary policy.