You are only exempt from the TOEFL/IELTS if you attended an English-speaking undergraduate institution in an English-speaking country for at least two years. If you attended an institution in an English-speaking country for a graduate degree, but your undergraduate degree is from a non-English- speaking country or institution, the Department of Economics requires that you take the TOEFL/IELTS. This is a stricter requirement than that of the Graduate School and reflects the fact that successful graduate study in economics depends crucially on your ability to understand, read, write and speak English. Further information is available on the Graduate School of Arts and Sciences Information for International Students page.