Pedestrians walk through Harvard Yard on the closed Harvard University campus in Cambridge, Massachusetts, U.S. (Photographer: Adam Glanzman/Bloomberg)
(Bloomberg Businessweek) -- The number of foreign students entering America’s top business schools is down sharply amid the Covid-19 pandemic and tight visa rules, even as overall enrollments and applications are up—a bad sign for U.S. programs that depend on international MBA candidates for diversity and full tuition.