 In the 1990s and into the 2000s, Carnegie Mellon solidified its status among American universities, consistently ranking in the top 25 in the national "U.S. News & World Report" rankings, and in the top 60 (ranking 55th in 2013) amongst universities worldwide.Carnegie Mellon is distinct in its interdisciplinary approach to research and education.Through the establishment of programs and centers that are outside the limitations of departments or colleges, the university has established leadership in fields such as computational finance, information systems, cognitive sciences, management, arts management, product design, behavioral economics, energy science and economics, human-computer interaction, entertainment technology, and decision science.