Investing in Human Capital through Philanthropy: A Policy Review of the Onassis Foundation’s Initiative in Greek Public Schools

The paper examines the Onassis Foundation’s philanthropic investment of one hundred and sixty million euros, aimed at transforming twenty-two public lower- and upper-secondary schools into a high-quality network of Public Onassis Schools. The analysis is grounded in human capital theory, the economics of education, and the international literature on educational philanthropy, exploring how a large-scale private donation can influence public education policy, and support the improvement of public schooling. The study analyzes the school-based investments made by the initiative in infrastructure, curriculum enrichment, and teacher professional development, and compares them to similar international programs spearheaded by the Bill & Melinda Gates Foundation, the Jacobs Foundation, and Bloomberg Philanthropies. It is found that such public-private partnerships can enhance teaching quality and learning coherence and, at the economic level, strengthen the professional capital of teachers and generate long-term social returns through the enlargement of human capital. On the whole, the initiative is shown to offer an example of how a philanthropic investment channeled to a common vision can be a model of human-centered reform with practical educational and socioeconomic payoffs.