The recent growth in the number and diversity of schools around the world classified as "International Schools" raises questions about what makes a school's claim to be an International School legitimate. From the analysis we report here, the provision of an international curriculum emerges as what a school must do to be legitimate as an…

In this paper, we use institutionalisation theory to analyse the legitimacy of schools identifying themselves or being identified by others as 'international'; identify aspects of institutionalisation theory that could be developed; and argue that an institutionalisation perspective should be more central in educational organisation theory.…