Sometimes, you can read reports about over-education, i.e., that there are too many university educated graduates and that this decreases the value of a university degree. Germany has increased the share of its population with a university degree from 21% in 1991 to 30% in 2015. For the sake of this analysis, equate university graduates with high-skilled workers. Comment on the claim that the value of a university degree has decreased using the HOS model from wage inequality question posted earlier