The Center on Budget and Policy Priorities (CBPP) is a progressive American think tank that analyzes the impact of federal and state government budget policies. Its stated mission is to "conduct research and analysis to help shape public debates over proposed budget and tax policies and to help ensure that policymakers consider the needs of low-income families and individuals in these debates."
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.
The National Bureau of Economic Research (NBER) is a private, non-profit, non-partisan organisation dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, and business professionals.