Federal Reserve Vice Chairman Stanley Fischer said policy makers will consider global growth as they begin to raise interest rates, and that they could increase them more gradually should the world economy falter. “If foreign growth is weaker than anticipated, the consequences for the U.S. economy could lead the Fed to remove accommodation more slowly than otherwise,” Fischer said in a speech prepared for delivery Tuesday at Tel Aviv University. The Fed will weigh how raising rates will affect other nations, said Fischer, 71, a former governor of the Bank of Israel.