Similarities throughout the structures, organization, policies, operations, and processes of education systems have long been studied. Complementary explanations for this are found in theories of world society and convergence—the former focused on factors that are exogenous to the operational behaviour of education systems, and the latter on endogenous factors. The extensive literature on policy transfer or borrowing provides an explanation for policy similarities across countries. This chapter explores rise of fads associated with policy transfer associated with foreign aid. Analysis focuses on how fads—in the form of product standardization—have become an institutional necessity for the large-scale aid institutions concerned with their respective accountabilities and internal efficiency. As a result, product standardization often takes precedence over context sensitivity and appropriateness in the education branch of the aid industry.