Summary: Nov. 28 (Bloomberg) -- The Bloomberg Advantage with Kathleen Hays and Vonnie Quinn. GUESTS: Marshal Cohen Chief Industry Analyst Npd Group Inc On retail, Black Friday. Sam Shank CEO/Co-Founder Hotel Tonight Inc On the HotelsTonight app, Black Friday deals, changing landscape of travel and travel spending. Dr Daniel H Yergin Vice Chairman IHS Inc On the OPEC meetings, the future of oil.
