Contributor(s): Dr Mara Pasquamaria Squicciarini | Dr Mara Pasquamaria Squicciarini (@mara_squi) is based in the Department of Economics at Bocconi University and is currently a visiting academic at Harvard. Her research interests include economic history, economic growth and development, and applied macroeconomics.

Patrick Wallis is Professor of Economic History at LSE. His research explores the economic, social and medical history of Britain from the 16th to 18th century.