Instead of mirroring Amazon’s capital-intensive, fully-owned logistics network, MercadoLibre adopted a flexible hybrid model. It owns the core infrastructure but partners with local services for last-mile delivery, achieving speed and reliability without the massive capex burden.

CEO Doug McMillan's decision to raise worker pay by 90% was key to Walmart's resurgence. This investment in people lowered turnover, improved service, and attracted new customers, ultimately quadrupling the stock price and proving a vital strategy against competitors like Amazon.

While Amazon masters digital and Costco dominates physical retail, Walmart is uniquely succeeding by becoming fluent in both. By seamlessly integrating its massive physical footprint with a strong e-commerce and app experience, Walmart has created a powerful 'omnichannel' model that pure-play competitors struggle to replicate, driving its stock to all-time highs.

A decade ago, investors dumped Walmart stock when its CEO invested billions in raising worker pay and improving stores. This long-term, people-first strategy, combined with e-commerce growth, proved to be the foundation for its eventual rebound to a $1 trillion valuation.

While most tech giants focus on the digital world of "bits," Amazon's true dominance comes from its mastery of the physical world of "atoms." Its massive, hard-to-replicate logistics infrastructure for moving goods creates a formidable competitive advantage that software-only companies cannot challenge.

Walmart's primary view of AI is offensive, focusing on growth opportunities like creating a personalized, multimedia e-commerce experience. This shifts the narrative from AI as merely a defensive efficiency tool to a strategic growth driver, fundamentally changing how people shop.

A few dominant consumer platforms are capturing the majority of retail sales, creating a winner-take-all market. These companies leverage their scale and cash flow to reinvest in technology and advertising, widening their competitive moats much like the largest tech companies.

To avoid being disintermediated by AI agents that could direct consumers elsewhere, retailers can leverage their physical assets. An AI agent will still prioritize retailers with extensive infrastructure and forward-positioned inventory to ensure fast and efficient delivery, creating a competitive moat against pure-play e-commerce.

To fund crucial investments in wages, prices, and e-commerce, Walmart's leadership, with board support, intentionally reduced its operating income from over 6% to just over 4%. This shareholder-funded investment was a deliberate, multi-year strategy to future-proof the business.