The nonpartisan Migration Policy Institute is an independent, nonpartisan think tank that seeks to improve immigration and integration policies through authoritative research and analysis, opportunities for learning and dialogue, and the development of new ideas to address complex policy questions.
The Institute for Fiscal Studies is an economic research institute based in London, United Kingdom, which specialises in UK taxation and public policy. It is politically independent and produces both academic and policy-related findings.
The US National Academies Press (NAP) was created by the National Academy of Sciences to publish the reports of the National Academies of Sciences, Engineering and Medicine, operating under a charter granted by the Congress of the United States. The NAP publishes on a wide range of topics in science, engineering, and medicine, providing authoritative information on important matters in science and health policy.