Transparency International. 2007. Corruption Perceptions Index. Available at: Accessed on September 5, 2007.

Treier, S., and Jackman, S. 2003. Democracy as a Latent Variable. Paper presented at the Political Methodology meetings, University of Minnesota, Minneapolis-St. Paul.

USAID (U.S. Agency for International Development). 1998. Handbook of Democracy and Governance Program Indicators. Washington, DC: Center for Democracy and Governance. Available at: Accessed on August 1, 2007.

Vanhanen, T. 2000. A New Dataset for Measuring Democracy, 1810-1998. Journal of Peace Research 37:251-265.

Vermillion, J. 2006. Problems in the Measurement of Democracy. Democracy at Large 3(1): 26-30.

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