Since we've had a couple of threads about prelims (or qualifiers and comps) lately, I think it would be worthwhile to compile a list of exams and requirements from different universities.
I'll set things up with the following template:
School: University of Wisconsin-Madison
Required prelims: Macro theory and micro theory
When taken: First attempt: End of July following first year
Retakes: Everyone gets a second attempt in the first week of January of their second year. Students can apply for a third attempt the following July, which is occasionally granted.
Score required to pass: 50% on both. You can pass them one at a time.
Link to old prelims: Sample Prelim Exams - Economics (dating back to 1997)
Field exams: No, a field paper is required instead.
For those of you starting PhD programs this year or in the future, this will give you an idea of what you're expected to learn during your first year at various schools. If you're getting ready to take prelims soon (like me), this could serve as a nice source of extra review questions.