The study, conducted by professors from the Wharton School, London Business School, and Utrecht University, found that MBA grads who moved internationally once or twice experienced less pay growth compared to those who stayed put. However, grads who made more than four international moves, termed “Superglobals”, saw substantially higher pay growth.
Source: Poets&Quants | MBA Pay: The Impact Of Moving Overseas
Presumably this study is looking at MBA graduates from multiple countries. Unfortunately, the study is behind a paywall.
Would US citizens who pursue an MBA and then work internationally have a different experience than citizens of the UK or the Netherlands? Without access to the study, we do not now if they answered that question.