International indicators on education finance are defined in terms of the educational goods and services purchased in relation to the educational programmes. In practice, educational institutions are most commonly used as defining units rather than educational goods and services, reflecting the traditional interest in how much schools, colleges and universities cost. But while an institutional dimension is important, spending, particularly from public sources, outside of educational institutions helps support the learning and access to education within institutions. Differentiating the spending devoted to educational and non-educational goods and services offered by institutions also provides for an analysis of the expenditure devoted to core educational purposes. Finally the source of funds dedicated to education spending assesses who the major contributors are and the impact this may have on the access and provision of education.
It is therefore important to consider a framework for educational expenditure that is built around three dimensions:
the location of service providers (within or outside of institutions)
the goods and services provided or purchased (core and peripheral goods)
the source of funds that finance the provision or purchase of these goods and services (from public, private and international sources).