Bitcoin Boom Looks Increasingly Perilous to Cumberland's Kotok

David Kotok, chairman and CEO of Cumberland Advisors, talks about bitcoin risks and how many fixed income players may not be seasoned enough to withstand a downturn. Mark Dunkerly, departing Hawaiian Airlines president and CEO, tells Pimm Fox and Lisa Abramowicz about retiring from the company and what lies next. Dakin Campbell, a financial reporter at Bloomberg, talks about how Goldman Sachs is facing doubts about loss rates at its new online lender platform. Finally, Shira Ovide, a Bloomberg Gadfly columnist covering technology, discusses why Travis Kalanick needs to explain his role in Uber's breach. 

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