Gerring, J.; Bond. P.; Barndt, W.; and Moreno, C. 2005. Democracy and Growth: A Historical Perspective. World Politics 57(3):323-364.
Huntington, Samuel P. 1991. The Third Wave: Democratization in the Late Twentieth Century. Norman, OK: University of Oklahoma Press.
McFaul, M. 2005. Transitions from Postcommunism. Journal of Democracy 16(3): 5-19.
Munck, G. L. 2006. Standards for Evaluating Electoral Processes by OAS Election Observation Missions. Paper prepared for Organization of American States.
Persson, T., and Tabellini, G. 2006. Democratic Capital: The Nexus of Political and Economic Change. NBER Working Paper. No. 12175.
Rodden, J. 2004. Comparative Federalism and Decentralization: On Meaning and Measurement. Comparative Politics (July):481-500.