The 0.7% commitment, originally suggested by the Pearson Commission in 196911, was largely the result of a political compromise, in line with what ‘developed’ countries (loosely corresponding to today’s HICs) at the time thought was politically achievable. However, it was also underpinned by academic models12 prevalent at the time that linked economic growth to levels of investment. These models found that additional investment needs in ‘developing’ countries were equal to roughly 1% of the gross national income (GNI) of ‘developed’ countries to achieve adequate growth (defined as 6% per year). Given the rough split between public and private capital flows to developing countries at the time, this implied public financing needs of around 0.7% of developed-country GNI.