In a new study, Prof. Edward A. Snyder and his co-authors consider whether current antitrust guidelines would have checked Amazon’s voracious appetite for acquisitions if they had been in place earlier.

Decisions made by those at the top of major companies, nonprofits, and government organizations can affect millions of lives. Yale’s president and SOM’s current and future deans discuss how business schools can train leaders with the long-term perspective and sense of integrity to create durable value in their organizations.