The Global Development And Environment Institute (GDAE, pronounced “gee-day”) is a research center at Tufts University founded in 1993. GDAE conducts research and develops teaching materials in economics and related areas that follow an interdisciplinary approach that emphasizes ecological, cultural, social, and institutional factors. The Institute has produced more than twenty books and numerous articles, policy documents, and discussion papers. These materials are being used in academic settings, to enhance the teaching of economics and related subjects, and in policy circles, where GDAE researchers are recognized leaders in their fields.