Based on four decades (1973–2013) of OECD‐Development Assistance Committee aid to developing countries, this article aims to show aid‐financed global public goods trends, their changing composition and their main drivers. In particular, a constant increase in the share of aid‐financed global public goods and a shift towards weighted‐sum and weakest‐link global goods are observed. Economic conditions, imitation effects, global engagement and domestic spending result as the main drivers of donors’ demand for aid‐financed global public goods. Besides, a certain complementarity in the provision of global goods plays a role, especially in European countries and Japan, partially easing the prognosis for the collective action problems related to global goods