What should you do if a class is full? We suggest you place your name on the waiting list for that class through GOLD, and always have a backup class in mind and attempt to obtain a space in that class. We cannot manually enroll students in any class.
If you do not see a link for the economics course you want, then the waitlist for that class has not been opened or does not exist. Waitlists are only good until the fifth day of the quarter. For more information, see the waitlist page here.