Massimo Asta is research fellow (FCSH/IN2PAST) at the Contemporary History Institute of Nova University of Lisbon, Portugal, affiliated lecturer at the faculty of history of the University of Cambridge, and research associate at Robinson College, Cambridge. His current research explores the interweaving between left-wing political engagement, profession and economic ideas in France, United Kingdom, Italy, and German-speaking countries from the 1870s to the 1930s. Pedro Ramos Pinto is Associate Professor in International Economic History at the University of Cambridge, UK, where he has taught since 2013. His work focuses on the historical origins and reproduction of inequality, with a particular focus on the history and politics of measurement. He is the co-editor of The History of Universal Basic Income (2021) and is currently working on a book titled, Inequality: A Global History.