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An employee assembles customer orders at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

An employee assembles customer orders at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

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An employee double checks the contents of a customer order before sealing the package for shipment at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

An employee double checks the contents of a customer order before sealing the package for shipment at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

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Boxes sit on a cart as customer orders are assembled at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

Boxes sit on a cart as customer orders are assembled at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

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An employee prepares shipping boxes at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

An employee prepares shipping boxes at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

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An employee walks past a stack of empty boxes at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images

An employee walks past a stack of empty boxes at the Jet.com Inc. fulfillment center on Cyber Monday in Kansas City, Kansas, U.S., on Monday, Nov. 30, 2015. Online sales on Cyber Monday may rise at least 18 percent from a year earlier, slower growth than during the holiday weekend, as consumers start their Internet shopping earlier, according to forecasts by International Business Machines Corp. Photographer: Daniel Acker/Bloomberg via Getty Images