The department discourages students from taking either of the intermediate courses or econometrics at another university. You can take only one of the three 3000-level core courses at another school, and of course, you must get permission to do so (see Transfer Credits). The department will only credit courses that are the equivalent to courses offered at Columbia. An equivalent Intermediate Macroeconomics course would have both calculus and an introductory economics course(s) as its prerequisites. An equivalent Intermediate Microeconomics course would have an introductory course(s) and two semesters of calculus as its prerequisites. An equivalent econometrics course would have a statistics course as a prerequisite.