Why U.S. Retail Sales Ended 2015 Poorly

Shoppers Inside A Kmart Store Ahead Of Black Friday Sales
Shoppers enter a Kmart discount store, operated Sears Holdings Corp., as the doors open ahead of Black Friday in Frankfort, Kentucky, U.S., on Thursday, Nov. 27, 2014. An estimated 140 million U.S. shoppers are expected to hit stores and the Web this weekend in search of discounts, kicking off what retailers predict will be the best holiday season in three years. Photographer: Luke Sharrett/Bloomberg
Photograph by Luke Sharrett — Bloomberg via Getty Images