„On average, after transfers, 31% of total expenditure on tertiary institutions in 2019 came from the private sector. […] The level of private funding relates closely to the tuition fees charged by tertiary institutions. […] In countries where higher tuition fees are charged, such as Australia, Chile, Colombia, Japan, Korea, the United Kingdom and the United States, more than 60% of funding for tertiary institutions comes from private sources. On average across the OECD, 72% of all private expenditure on tertiary institutions comes from individual households.“
Univ.-Prof. Dr. Hatidža Jahić u. a., Alternative financing models and student loans in higher education (2023), S. 6.