Catherine Mann, Citigroup Global Chief Economist, says closing the door to trade doesn't enhance an economy. Jens Nordvig, Exante Data Founder & CEO, analyzes the trade dispute's impact on the renminbi. Mark Lehmann, JMP Securities President, says China has more to lose than the U.S. and Dana Telsey, Telsey Advisory Group CEO & Chief Research Officer, discusses actions taken by retailers to alleviate the impact of tariffs.