From the Abstract:
The Think Tanks and Civil Societies Program (TTCSP) of the Lauder Institute at the University of Pennsylvania conducts research on the role policy institutes play in governments and civil societies around the world. Often referred to as the “think tanks’ think tank,” TTCSP examines the evolving role and character of public policy research organizations.
The TTCSP works with leading scholars and practitioners from think tanks and universities in a variety of collaborative efforts and programs, and produces the annual Global Go To Think Tank Index that ranks the world’s leading think tanks in a variety of categories. This is achieved with the help of a panel of over 1,900 peer institutions and experts from the print and electronic media, academia, public and private donor institutions, and governments around the world. We have strong relationships with leading think tanks around the world, and our annual Think Tank Index is used by academics, journalists, donors and the public to locate and connect with the leading centers of public policy research around the world. Our goal is to increase the profile and performance of think tanks and raise the public awareness of the important role think tanks play in governments and civil societies around the globe.
Since its inception in 1989, the TTCSP has focused on collecting data and conducting research on think tank trends and the role think tanks play as civil society actors in the policymaking process.
Direct to Full Text Report (171 pages; PDF)
Direct to Think Tanks and Civil Societies Program (TTCSP) Website
Note: As of Jan. 28, 2017 the site had not been updated with the data from 2016 report.