The RAND Corporation is an American nonprofit global policy think tank, research institute, and public sector consulting firm. RAND Corporation engages in research and development (R&D) in a number of fields and industries. Since the 1950s, RAND research has helped inform United States policy decisions on a wide variety of issues, including the space race, the Vietnam War, the U.S.-Soviet nuclear arms confrontation, the creation of the Great Society social welfare programs, and national health care.