A shopping cart is seen outside a Staples office supplies store in the Chicago suburb of Glenview, Illinois, February 4, 2015. Staples Inc, the No. 1 U.S. office supplies retailer, agreed to buy No. 2 Office Depot Inc in a $6.3 billion deal designed to help it better compete against Wal-Mart Stores Inc and online rivals such as Amazon.com Inc . REUTERS/Jim Young (UNITED STATES - Tags: BUSINESS) 

Customers eat at a KFC outlet, franchised by Yum Brands, in a suburban shopping mall in Mumbai February 22, 2012. In a nation where most people still eat home-cooked meals and where lentils and rice are staples, Western chains increasingly are gaining a following and changing old dining habits. KFC and Pizza Hut parent Yum Brands Inc is hoping this Western fast-food phenomenon reaches millions more Indians as it tries to mirror the success story of China, which now contributes half of its operating profit. Yum is targeting Indian students and young office workers with adaptations of popular Western fast-food products designed to appeal to their unique tastes. Picture taken on February 22, 2012. To match Analysis YUM-INDIA/ REUTERS/Vivek Prakash (INDIA - Tags: BUSINESS FOOD) 

The sign outside of the Staples store is pictured in Broomfield, Colorado August 17, 2011 as the back-to-school shopping season begins. Staples Inc reported a better-than-expected quarterly profit on currency benefits and sales to its business customers in North America, prompting the U.S. office supply chain to raise its profit outlook. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS) 

The OfficeMax store is seen in Broomfield, Colorado August 17, 2011 as the back-to-school shopping season begins. Competitor Staples Inc reported a better-than-expected quarterly profit on currency benefits and sales to its business customers in North America, prompting the U.S. office supply chain Staples to raise its profit outlook as OfficeMax posted better-than-expected earnings as well. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS) 

A family leaves the Staples store in Broomfield, Colorado August 17, 2011 as the back-to-school shopping season begins. Staples Inc reported a better-than-expected quarterly profit on currency benefits and sales to its business customers in North America, prompting the U.S. office supply chain to raise its profit outlook. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS) 

A Staples office supplies store is pictured in Burbank, California May 13, 2008. Corporate Express said on May 13 it was willing to talk to U.S. office supplies retailer Staples Inc after it raised its offer for the Dutch business products wholesaler.
REUTERS/Fred Prouser (UNITED STATES)