The Rausser College of Natural Resources (CNR), a college of the University of California, Berkeley, is the oldest college in the UC system and home to several internationally top-ranked programs. Rausser's Department of Agriculture & Economics is considered to be one of the most prestigious schools in agricultural economics in the world, ranking #1 according to the Journal of Agricultural and Applied Economics, #1 by the Chronicle of Higher Education, #1 by Perry for its Ph.D. programs and in International Trade, #1 by the National Research Council in Agricultural & Resource Economics, and #1 by U.S. News in Environmental/Environmental Health. In environmental disciplines, QS World Rankings recognizes the University of California, Berkeley, as the world's leading university in Environmental Studies with 100 points in Academic Reputation. U.S. News also ranks it as the best global university for environment and ecology. A study of AJAE authors and their university affiliations found it to have the highest number of pages per research faculty member.