Amazon is the world's largest e-commerce company while Walmart is the undisputed world's largest retailer. The distribution channels that these behemoths employed were distinctly different in the past (clicks vs. bricks) but are now starting to merge. Amazon is rapidly building a network of distribution centers across the country and many observers believe their ultimate goal is to provide home delivery to consumers the same day that it is ordered.
Walmart is expanding its own e-commerce capabilities and leveraging a world-class supply chain system and enormous retail store presence with the goal of making products ordered online available for pick-up by consumers at the closest Walmart store on the day it is ordered. Which approach do you believe will be the most successful? Can Amazon really pull off same-day delivery across the nation (not just select urban markets)? Will Amazon overtake Walmart as the world's largest retailer (they still have a long way to go)? Support your response with research.