1. Brookings Institution (United States)
2. National Bureau of Economic Research (NBER) (United States)
3. Adam Smith Institute (ASI) (United Kingdom)
4. Cato Institute (United States)
5. Peterson Institute for International Economics (PIIE) (United States)
6. Heritage Foundation (United States)
7. Bruegel (Belgium)
8. Center for American Progress (CAP) (United States)
9. RAND Corporation (United States)
10. German Institute for Economic Research (DIW) (Germany)
11. Center for Social and Economic Research (CASE) (Poland)
12. Centre for Economic Policy Research (CEPR) (United Kingdom)
13. American Enterprise Institute for Public Policy Research (AEI) (United States)
14. Fundacao Getulio Vargas (FGV) (Brazil)
15. Urban Institute (United States)
16. Korea Development Institute (KDI) (Republic of Korea)
17. Centre for European Policy Studies (CEPS) (Belgium)
18. Kiel Institute for the World Economy (IfW) (Germany)
19. Ifo Institute – Leibniz Institute for Economic Research (Germany)
20. Center on Budget and Policy Priorities (CBPP) (United States)
21. Centro de Implementacion de Politicas Publicas para la Equidad y el Crecimiento
(CIPPEC) (Argentina)
22. Hoover Institution (United States)
23. Vienna Institute for International Economic Studies (WIIW) (Austria)
24. Centro de Estudios Publicos (CEP) (Chile)
25. C.D. Howe Institute (Canada)
26. Center for Economic and Financial Research (CEFIR) (Russia)
27. Association for Liberal Thinking (ALT) (Turkey)
28. Korea Institute for International Economic Policy (KIEP) (Republic of Korea)
29. Center for Economic and Policy Research (CEPR) (United States)
30. Institute for Fiscal Studies (IFS) (United Kingdom)
31. Austrian Institute of Economic Research (WIFO) (Austria)
32. Fundacao Armando Alvares Penteado (FAAP) (Brazil)
33. Institute of Economic Affairs (IEA) (United Kingdom)
34. Development Research Center of the State Council (DRC) (China)
35. Libertad y Desarrollo (LyD) (Chile)
36. Cathay Institute for Public Affairs (CIPA) (China)
37. Centro de Estudio de la Realidad Economica y Social (CERES) (Uruguay)
38. Netherlands Bureau for Economic Policy Analysis (CPB) (Netherlands)
39. Unirule Institute of Economics (China)
40. Manhattan Institute for Policy Research (MI) (United States)
41. Institute of World Economics and Politics (IWEP) (China)
42. demosEUROPA – Centre for European Strategy (Poland)
43. Fundacion para el Analisis y los Estudios Sociales (FAES) (Spain)
44. Center for European Economic Research (ZEW) (Germany)
45. Fraser Institute (Canada)
46. Centro de Investigacion y Docencia Economicas (CIDE) (Mexico)
47. Egyptian Center for Economic Studies (ECES) (Egypt)
8148. Chongyang Institute for Financial Studies (RDCY) (China)
49. Economics Institute (Serbia)
50. Center for Fiscal Policy (CFP) (Russia)
51. Economic and Social Research Institute (ESRI) (Ireland)
52. Singapore Institute of International Affairs (SIIA) (Singapore)
53. Kenya Institute for Public Policy Research and Analysis (KIPPRA) (Kenya)
54. Fundacion para la Educacion Superior y el Desarrollo (Fedesarrollo) (Colombia)
55. Economic Policy Institute (EPI) (United States)
56. Grattan Institute (Australia)
57. Moscow State Institute of International Relations (MGIMO) (Russia)
58. IMANI Center for Policy and Education (Ghana)
59. Research Institute of the Finnish Economy (ETLA) (Finland)
60. Sejong Institute (Republic of Korea)
61. Research Institute of Economy, Trade and Industry (RIETI) (Japan)
62. National Institute of Economic and Social Research (NIESR) (United Kingdom)
63. Swedish Institute for Social Research (SOFI) (Sweden)
64. National Center for Public Policy Research (NCPPR) (United States)
65. Economic Policy Research Center (EPRC) (Uganda)
66. Center for Liberal-Democratic Studies (CLDS) (Serbia)
67. Central Institute for Economic Management (CIEM) (Vietnam)
68. Timbro (Sweden)
69. Economics Institute (CERGE-EI) (Czech Republic)
70. Fundacion de Estudios de Economia Aplicada (FEDEA) (Spain)
71. TARKI Social Research Institute (Hungary)
72. Levy Economics Institute (United States)
73. Institute of Economics, Zagreb (EIZ) (Croatia)
74. Council on Foreign Relations (CFR) (United States)
75. Chatham House (United Kingdom)
76. Institute for Advanced Studies (HIS) (Austria)
77. Institute for Economic Research (IER) (Slovenia)
78. Indian Council for Research on International Economic Relations (ICRIER) (India)
79. Center for Economic and Social Development (CESD) (Azerbaijan)
80. Centre d'Etudes Prospectives et d'Informations Internationales (CEPII) (France)
81. African Technology Policy Studies Network (ATPS) (Kenya)
82. Lithuanian Free Market Institute (LFMI) (Lithuania)
83. African Economic Research Consortium (AERC) (Kenya)
84. Asian Strategy & Leadership Institute (ASLI) (Malaysia)
85. Botswana Institute for Development Policy Analysis (BIDPA) (Botswana)
86. BRICS Policy Center (Brazil)
87. Cambodian Development Research Institute (CDRI) (Cambodia)
88. Center for Economic Analyses (CEA) (Macedonia)
89. Center for Political Studies (CEPOS) (Denmark)
90. Centre d'Etudes et de Recherche sur les Analyses et Politiques Economiques (Congo)
91. Centre de Recherches, d’Etudes et d’Appui a l’Analyse Economique a Madagascar
(CREAM) (Madagascar)
92. Centre for Economic and Financial Research (CEFIR) (Russia)
93. Consejo Latinoamericano de Ciencias Sociales (CLACSO) (Argentina)
94. Hudson Institute (United States)
95. Duesseldorf Center for Competition Economics (DICE) (Germany)
96. Economic and Social Research Foundation (ESRF) (Tanzania)
97. Centro de Investigación de Políticas Públicas (Grupo FARO) (Ecuador)
98. Chinese Academy of Social Sciences (CASS) (China)
99. Economic Research Center (ERC) (Azerbaijan)
100. Research Institute of Economy, Trade and Industry (RIETI) (Japan)
101. Economic Research Institute (ERI) (Kazakhstan)
102. Facultad Latinoamericana de Ciencias Sociales (FLACSO) (Costa Rica)
103. Centre for Independent Development Research (CIDR) (Cameroon)
104. Centro de Economía para América Latina (CEPAL) (Chile)
105. Institute for Economic Growth (IEG) (India)
106. Centro de Estudos de Integração e Desenvolvimento (CINDES) (Brazil)
107. Gaidar Institute for Economic Policy (Russia)
108. Grupo de Análisis para el Desarrollo (GRADE) (Peru)
109. Indira Gandhi Institute of Development Research (IGIDR) (India)
110. Institucion Futuro (Spain)
111. Institute for Democracy and Economic Analysis (IDEA) (Czech Republic)
112. Institute for Ecological Economy Research (IÖW) (Germany)
113. Ukrainian Center for Economic and Political Studies (Ukraine)
114. Institute for Economic Research and Policy Consulting (IER) (Ukraine)
115. National Council of Applied Economic Research (NCAER) (India)
116. Institute for Market Economics (IME) (Bulgaria)
117. Shanghai Academy of Social Sciences (SASS) (China)
118. Tax payers Alliance (United Kingdom)
119. Washington Center for Equitable Growth (United States)
120. Institute for Public Policy and Good Governance (IPPM) (Albania)
121. Institute of Economic Affairs (IEA) (Ghana)
122. Institute of Economic Affairs (IEA) (UK)
123. Institute of Economic and Social Studies (INESS) (Slovakia)
124. Institute of Economic Studies and Political Consultations (IER) (Ukraine)
125. Institute of Economy of the Russian Academy of Sciences (EDIRC) (Russia)
126. ISET Policy Institute (Georgia)
127. Israel Centher for Social and Economic Progress (ICSEP) (Israel)
128. Macroeconomic Policy Institute (IMK) (Germany)
129. Institute of Economic Affairs (IEA) (Kenya)
130. Makerere Institute of Social Research (MISR) (Uganda)
131. Mercatus Center (United States)
132. National Development and Reform Commission Academy of Macroeconomic Research
(NDRC) (China)
133. Observer Research Foundation (ORF) (India)
134. Samriddhi, The Prosperity Foundation (Nepal)

Source:
http://repository.upenn.edu/cgi/viewcontent.cgi?article=1009&context=think_tanks