At the scale Walmart operates - 25th largest GDP in the world if considered as a nation[1], supporting over 2.2 Million employees[2], in over 27 countries[3] -

At the scale Walmart operates - 25th largest GDP in the world if considered as a nation[1], supporting over 2.2 Million employees[2], in over 27 countries[3] - it's simply more cost effective to do your tech in-house. Amazon is huge... but Walmart is truly massive... over double Amazon's size in just about every metric. They clearly have the resources to handle things on their own. [1] https://poseidon01.ssrn.com/delivery.php?ID=034072126078025082000101009018110011042074022060000048106031112022115073078031068005055121001048121008111067082118030001026082122036021019014122114025103092002019003105087117003006102025105121013117126120031096095099079007084023115082014083069&EXT=pdf&INDEX=TRUE https://poseidon01.ssrn.com/delivery.php?ID=0340721260780250... [2] https://corporate.walmart.com/newsroom/company-facts#:~:text=Opportunity-,Walmart%20employs%20more%20than%202.2%20million%20associates%20around%20the%20world,higher%20pay%20in%20Walmart%20U.S https://corporate.walmart.com/newsroom/company-facts#:~:text.... [3] https://corporate.walmart.com/askwalmart/in-which-countries-does-walmart-operate#:~:text=Today%2C%20Walmart%20operates%20more%20than,eCommerce%20websites%20in%2010%20countries https://corporate.walmart.com/askwalmart/in-which-countries-....