Torsten Slok, Deutsche Bank Chief International Economist, asks what the Chinese retaliation may look like against U.S. tariffs. Vince Reinhart, Standish Chief Economist and Investment Strategist, thinks the Fed may have a problem knowing when to stop hiking rates. Edward Alden, Council on Foreign Relations Bernard L. Schwartz Senior Fellow, says the U.S. is on the verge of a trade war with all of its trading partners. And Suzanne Tager, Bain & Company's Retail and Consumer Products Practices Senior Director, says retail stores are not dead but their role has changed.