Is there a collection of Economics PhD prelims questions? Out of curiosity, do you know if there is a collection of Economics PhD prelims questions?
Exams from:


Harvard
UC Davis
MIT (only problem sets; go to graduates).


Although more cumbersome, you can also google something like "advanced macroeconomics exams pdf" or so, and you can discover personal pages of lecturers/professors that put up previous exams (or problem sets). For example, resources from a lecturer at Leipzig (go to bottom of page), Oslo, Dublin (one exam only), Helsinski.