1. Acemoglu, D., & Wolitzky, A. (2011). The economics of labor coercion. Econometrica, 79, 555–600.
2. Adamson, A. H. (1972). Sugar without slaves: The political economy of British Guiana, 1838–1904. New Haven, CT: Yale University Press.
3. Akyeampong, E., Bates, R. H., Nunn, N., & Robinson, J. A. (Eds.). (2014). Africa’s development in historical perspective. New York: Cambridge University Press.
4. Ali, M., & Wain, J. (1995). Without mercy: A mother’s struggle against modern slavery. New York: Warner Books.
5. Anon. (1761). The annual register, or a view of the history, politicks, and literature of the year 1760. London: R. and J. Dodsley.