This week featured a clash of the retail titans in M&A land. Amazon has reportedly looked at buying both Whole Foods and BJ's Wholesale Club. Meanwhile, Walmart is nearing a deal to buy men's fashion retailer Bonobos for about $300 million. Does Amazon want to be Walmart, and vice versa? Bloomberg consumer team leader Nick Turner and Gadfly columnist Shelly Banjo explain both companies might be thinking to host Alex Sherman.

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