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Fast food needs to beef up delivery to stay relevant: Wells Fargo

Competition in the fast-food space is hot. In order to stay relevant in the space, companies need to beef up their technology and delivery initiatives, according to Wells Fargo. It is estimated that restaurant delivery will become a $50 billion market in the U.S. over the next three years. Here's Yahoo Finance's Heidi Chung to break down some findings from the Wells Fargo survey.