Brown’s focus is on interest group politics, nonprofit organizations, and public policy. He has been published on presidential transitions, education policy, and increasingly, in the area of immigration. Brown is particularly interested in how nonprofit organizations advocate and lobby in the policy process, as well as in the ways in which transitions between regimes, at the national, state, and local levels, involve the public in personnel and policy decision-making. In addition to his academic work, Brown has served as Policy Director of the Council of Graduate Schools where he frequently worked with the National Science Foundation, Department of State, and White House Office of Science and Technology Policy. He also worked as a policy analyst for the American Bus Association and fellow for the Congressional Budget Office.