In this Feb. 11, 2010, file photo, Council of Economic Advisers Chairwoman Christina Romer briefs reporters at the White House in Washington. The White House said on Thursday, Aug. 5, 2010, that Mrs. Romer is resigning her position to return to academia. Her resignation will take effect Sept. 3. (AP Photo/Charles Dharapak, File)

Photo by: Charles Dharapak

In this Feb. 11, 2010, file photo, Council of Economic Advisers Chairwoman Christina Romer briefs reporters at the White House in Washington. The White House said on Thursday, Aug. 5, 2010, that Mrs. Romer is resigning her position to return to academia. Her resignation will take effect Sept. 3. (AP Photo/Charles Dharapak, File)