1. Abramovitz M (1956) Resource and output trends in the U.S. since 1870. Am Econ Rev 46(2):5–23
2. Acemoglu D (2009) Introduction to modern economic growth. Princeton University Press, Princeton
3. Acemoglu D, Robinson J (2012) Why nations fail: the origins of power, prosperity, and poverty. Crown Publishers, New York
4. Aghion P, Howitt P (1998) Endogenous growth theory. MIT Press, Cambridge, MA
5. Aghion P, Howitt P (2009) The economics of growth. MIT Press, Cambridge