Roger Backhouse's recent research has been on the history of economics, focusing on twentieth-century economics and macroeconomics. For the past eight years he has been working on an intellectual biography of Paul A. Samuelson, the first volume of which was published in 2017, and which was awarded the Spengler Prize for the best book of the year, by the History of Economics Society. Another book, co-authored with Mauro Boianovsky, Transforming Modern Macroeconomics; Exploring Disequilibrium Microfoundations, 1956-2003 was been awarded the Blanqui Prize by the European Society of the History of Economic Thought. Other interests include the history of welfare economics, the relationship between economics and other social sciences, and the history of empirical macroeconomics.