On 22 January 2014 the Think Tanks and Civil Societies Program at the University of Pennsylvania releases its latest “Global Go To Think Tanks Report.” This series of annual reports, launched in 2007, has been subject to substantial criticism from scholars working in or on think tanks.
Over the past decade, various organizations and publications have started to rank think tanks, mostly at the national level. Top-ranked think tanks like to announce their standings in promotional material and on their websites. While such ranking Indexes help to draw attention to the growing think tank scenes across the globe and are thus to be welcomed, the existing rankings are fraught with problems; conceptual and methodological difficulties in particular are abound. Current attempts to rank think tanks therefore need to be approached with caution.
There is no agreement on what essentially defines a think tank. Many definitions have been offered, but not one is entirely satisfactory. Given the prevailing ambiguity and also vagueness of think tank conceptualizations, we often do not really know which organizations should be considered thinks tanks and which ones should not.
The national contexts in which think tanks operate differ and so do the ways in which they perform their various activities and roles in pursuing their manifold missions. Think tank rankings at the regional or global levels are thus always dubious.
Output, public outreach or other performance-based criteria are usually offered to buttress think tank rankings, but these criteria are often not weighed or properly operationalized.
It is especially difficult to assess think tanks’ policy-oriented influence. Various rankings try to measure some of the output produced by think tanks – output that can be understood as “intermediary products.” Counting such products can help to get a better idea of think tanks’ visibility, but not of their actual impact on public policy.
Think Tanks: The Quest to Define and to Rank Them, GIGA Focus International Edition English, 10, December, urn:nbn:de:0168-ssoar-370407(2013),
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