Based on the experience of the 20th century, the rich countries of the world could afford to commit US$1 trillion per year for a couple of decades. According to a compelling scenario, the total investment of $20 trillion in nominal terms will comprise $13.6 trillion in current dollars since the funds will be disbursed over time rather than spent at once.
Using conservative estimates, the present value of the benefits will exceed $3.39 quadrillion which represents a payback of 249 times the original investment. In this way, the windfall from a global program of social capital should far surpass the outlay required for its implementation.
NOTE. The full report is available under the following title: “On the Economic Returns from a Global Program of Social Capital”. The document, available in PDF form, may be downloaded from the Library at MintKit.