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2. Calomiris, Charles W., and Stephen H. Haber. Fragile by Design: The Political Origins of Banking Crises & Scarce Credit. Princeton: Princeton University Press, 2014.
3. Cuñat, Vicente, and Luís Garicano. “Did Good Cajas Extend Bad Loans? Governance, Human Capital and Loan Portfolio.” Working Papers 2010-08, FEDEA, 2010.
4. Ekaizer, Ernesto. El Libro Negro. Como Fallo el Banco de España a los Ciudadanos. Madrid: Espasa, 2018.
5. Ferguson, Neil. The Great Degeneration. New York: Penguin Press, 2013.