Statistical data: World Economy

Information from the US Census Bureau.

A free data library project run by the University of Oxford.

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Conservative think tank with primary focus on American government, economics and social welfare.

Public policy research organization with a conservative leaning.

A public policy think tank located at Stanford University, with a broadly conservative viewpoint.

A non-partisan political think tank located in Washington D.C.

A foreign policy think tank with research centers around the world.

Libertarian think tank focused primarily on public advocacy and societal influence.

A Washington D.C. think tank focused on international relations.

Conducts non-partisan research on a wide variety of topics.

A non-partisan global policy think tank, partly funded by the US government.

Conducts research and advocates on economic and social issues, with a liberal viewpoint.

Conducts research on economic issues, from a liberal viewpoint.

A liberal think tank that promotes progressive political ideas.

https://researchguides.uoregon.edu/american-policy-directory

A list of think tanks categorized by political leaning, from the New York Times.

Harvard University's search tool can help you find think tanks doing research on your topic.