Walmart’s $7 billion global digital marketing campaign could be a success story

In an industry where every penny counts, the biggest name in digital marketing is a Walmart.Its $7.5 billion digital marketing program, dubbed "Smart Digital," could be the biggest online marketing program ever for a retailer, according to a report from McKinsey & Company, and the first to utilize Google and Amazon's data analytics technology.The deal could give Walmart a big foothold in the g...