Economics II is a pre-requisite for Macroeconomics I at ISEG. Exchange students (e.g. Erasmus) should not enroll in Macroeconomics I (intermediate level) if they have never had an introductory-level course in macroeconomics before. Some basic knowledge of algebra and calculus (e.g. partial derivatives and differentials) is also required for this course - see Mathematics I and Mathematics II for first-year compulsory maths courses at ISEG.