Sea Limited used its wildly popular game, Free Fire, to build brand presence and a user base in Brazil before even launching its e-commerce platform, Shopee. This unconventional strategy provided a massive, low-cost customer acquisition channel.

Despite political pushes for American manufacturing, the reality on Amazon's marketplace is the opposite. Chinese sellers' global share grew from 50% to 57% in one year, indicating that platform dynamics and global supply chains are more powerful forces than nationalistic economic policies like tariffs.

By initially focusing on unbranded fashion and beauty, Shopee attracted female consumers who tend to buy more frequently and write more product reviews. This behavior accelerated platform trust and improved logistics efficiency in its early days.

Instead of competing against the "buy local" trend, Amazon could incorporate it into its platform. By adding a "buy local" button that uses AI to source products from nearby stores, Amazon could generate revenue from local delivery or referral fees, turning a major point of criticism into a new business opportunity.

The company's declining operating margins post-2017 were not a sign of weakness but a deliberate strategy. Management aggressively reinvested profits into logistics and payments, temporarily compressing margins to solidify long-term market dominance and build a powerful competitive moat.

Sea Limited's highly profitable gaming division, Garena, served as a cash cow, subsidizing the aggressive, loss-making expansion of its e-commerce arm, Shopee, into competitive markets like Brazil. This highlights the power of a diversified business model.

With experience at both eBay and Temu, Jennifer Deal warns that sellers must treat each marketplace as a unique ecosystem. A successful strategy on one platform won't work on another due to different business models, customer bases, and tools. Success requires a tailored approach for each specific marketplace, as the landscape is highly fragmented.

Despite Lazada having Alibaba's immense resources, Shopee won by empowering large, local teams in each market. This hyper-local approach to product, marketing, and seller support proved superior to Lazada's centralized, one-size-fits-all regional strategy.

Unlike global giants like Amazon or Shopee which might de-prioritize Latin America during global recessions, MercadoLibre is fully committed to the region. This "no alternative" focus ensures it will invest through downturns, solidifying its market leadership against fair-weather competitors.