Final answer:
Walmart viewed Mexico as an attractive market for their business, as evidenced by their joint venture with the country's largest retailer.
Step-by-step explanation:
When Walmart stores first expanded into Mexico, management established a joint venture with the country's largest retailer. This approach suggests that management viewed Mexico as an attractive market for their business. By partnering with a local retailer, Walmart could leverage their partner's knowledge of the Mexican market, establish a strong presence, and gain access to a large customer base.