In addition, undergraduates will generally not be admitted to graduate courses if there is an undergraduate course in the same area, unless you have first completed the undergraduate course with an honors grade. If there are courses that interest you, you should speak to the instructor. Undergraduates must obtain the permission of the instructor in order to enroll in any graduate course. Of particular interest to juniors and senior with strong backgrounds are the PhD courses, particularly IEF 301a and IEF 302a. These cover microeconomic and macroeconomic theory at a high level, with extensive use of calculus and linear algebra.
Every year there is some confusion about what courses qualify as upper-level electives.
For economic concentration credit, an upper-level elective is a course that has 80a, 82b or 83 as a prerequisite. Specifically, Econ 122, 165a and 175 DO NOT qualify. Masters' courses that you take during your 4th year will typically NOT satisfy the upper-level elective requirement, and the registrar will not permit you to register for the 5th year if you have not completed all of your undergraduate requirements. The economics department does not require an internship, and does not give concentration credit for internships. This is a spring term course.