The study addresses the question: Are workers who hold a university degree increasingly filling job openings meant for people with lower levels of schooling? It focuses on Portugal, where the higher education system has been expanding at a fast pace and the share of university graduates in total labour force has been increasing, but where the unemployment rate for such workers has also been increasing.
Link
ftp://repec.iza.org/RePEc/Discussionpaper/dp1311.pdf