Walmart is making a move to counter Amazon's fastest-growing retail business by partnering with Shopify

· Walmart will allow Shopify sellers to list items on its website. 
· The deal will give Walmart.com customers access to more goods and provide a boost to Walmart's third-party Marketplace business. 
· Walmart's third-party sales outpaced first-party sales in the first quarter of the year. 
· Third-party sales have also...