This document summarizes a study examining pay differences between local and expatriate workers in international development organizations across multiple countries. The study found that expatriate workers earned on average 4 times as much as local workers. Both local and expatriate workers felt pay differences above a ratio of 3:1 were unjust. Local workers reported feelings of demotivation and unfairness due to the pay differences, while expatriate workers did not report these feelings as strongly. The study concluded that reducing pay differences and increasing transparency around pay could help address issues of discrimination and demotivation among local staff.