- History of the welfare state in comparative perspective
- The determinants of redistribution
- Economic history of education
- Espuelas, S. (2017) "Political Regime and Public Social Spending in Spain: A Time Series analysis (1850-2000)", Journal of Iberian and Latin American Economic History, 35(3), 355-386. Link .
- Espuelas, S. (2015) "The inequality trap. A comparative analysis of social spending between 1880 and 1930", Economic History Review, 68(2), 683-706. Link .
- Espuelas, S. (2013) "Fallos de mercado y seguro de paro en España antes de 1936", Revista de Historia Económica / Journal of Iberian and Latin American Economic History, 31(3), 387-422. Link .
- Espuelas, S. (2013) "Los obstáculos al desarrollo de los seguros sociales en España antes de 1936: el caso del seguro de desempleo", Revista de Historia Industrial, 52, 77-110. Link .
- Espuelas, S. (2013) "La evolución del gasto social público en España, 1850-2005", Banco de España, Estudios de Historia Económica (63) . Link .
- Espuelas, S. (2012) "Are dictatorships less redistributive? A comparative analysis of social spending in Europe (1950-1980)", European Review of Economic History, 16(2), 211-232. Link .
