Research into minimum income standards and reference budgets around the world is compared in this illuminating collection from leading academics in the field. From countries with long established research traditions to places where it is relatively new, contributors set out the different aims and objectives of investigations into the minimum needs and requirements of populations, and the historical contexts, theoretical frameworks and methodological issues that lie behind each approach. For policymakers, practitioners and social policy and poverty academics, this essential review of learnings to date and future prospects for research is all the more relevant in light of the COVID-19 pandemic, testing health and social protection systems around the globe.