What business venture did Alexander McSween undertake to compete with his rivals?

Alexander McSween opened a new store to compete with Dolan and Riley as a strategic business venture to assert control and gain market share in Lincoln County amidst a highly competitive environment. At the time, McSween was involved in a larger conflict known as the Lincoln County War, where economic interests were deeply intertwined with local power struggles. By establishing his own store, McSween aimed to provide a viable alternative to consumers who were largely dependent on Dolan and Riley, who were dominant players in the area's economic landscape.

This move not only helped McSween build his business but also endeavored to undermine his rivals' control over commerce in the county, contributing to the rising tensions leading to the conflict. His decision to enter the retail market reflects a common practice among entrepreneurs of the era, who often faced fierce competition and sought innovative ways to attract customers.