The overall U.S. and global macroeconomic story is getting worse while the dollar is getting stronger, which together argue that the Fed is going to win the inflation battle, said Steven Ricchiuto, U.S. chief economist at Mizuho Securities USA. FedEx withdrew the financial forecast it issued just three months ago, saying a global demand slowdown accelerated at the end of August and was on pace to worsen in the November quarter. Stocks on Wall Street opened lower after FedEx's profit warning spooked investors, who are concerned the Fed's aggressive rate hikes may tip the U.S. economy into a recession.