Datasets

International Nuclear Assistance Datasets

By Matthew Kroenig

The International Nuclear Assistance Datasets contains information about the international transfer of sensitive nuclear materials and technology from 1951-2000. The dyadic dataset contains yearly information about sensitive nuclear transfer between capable nuclear suppliers and potential nuclear recipient dyads in the international system. The data are described in:

Matthew Kroenig, “Exporting the Bomb: Why States Provide Sensitive Nuclear Assistance,” American Political Science Review, Vol. 103, No. 1 (February 2009), p. 113-133.

Data (zipped in Stata format).

The monadic dataset contains information on countries that have received sensitive nuclear assistance. The data are described in:

Matthew Kroenig, “Importing the Bomb: Sensitive Nuclear Assistance and Nuclear Proliferation,” Journal of Conflict Resolution, Vol. 52, No. 2 (April 2009), p. 161-180.

Data (zipped in Stata format).

The Parliamentary Powers Index (PPI)

By M. Steven Fish and Matthew Kroenig

The PPI contains information on the power of the national legislature for 158 countries. The index includes 32 items that gauge the legislature’s ability to influence the executive, the legislature’s autonomy from executive control, the legislature's authority in specific areas, and its institutional capacity. The component indicators are aggregated into a PPI score that measures the overall power of the national legislature. The PPI score ranges from zero to one. The scores represent a snapshot of the state of the world in 2007.

If you use the PPI in a publication, we ask that you use the following citation:

M. Steven Fish and Matthew Kroenig, The Handbook of National Legislatures: A Global Survey, (New York: Cambridge University Press, 2009).

PPI Scores by Country (pdf).

PPI Data (zipped, in Stata format); (in Excel format).

PPI Codebook

Diversity, Conflict, and Democracy Dataset

By M. Steven Fish and Matthew Kroenig

The Diversity, Conflict, and Democracy Dataset contains information on ethnic composition, civil conflict, and political openness for the countries of the post-Communist region, meaning Eastern Europe (including the former Yugoslavia), the former Soviet Union, and Mongolia, from 1991-2004.

If you use the Diversity, Conflict, and Democracy Dataset in a publication, we ask that you use the following citation:

M. Steven Fish and Matthew Kroenig, “Diversity, Conflict, and Democracy: Some Evidence from Eurasia and East Europe,” Democratization Vol. 13, No. 5 (December 2006), p. 828-842.

Data (zipped, in Stata format).