degree in 1979, and was appointed lecturer in law at the University of Oslo in 1980.
In 1985, he obtained the dr.juris degree and was appointed as associate professor.
He was a member of the Study Group on a European Civil Code.
He was a member of the Norwegian Academy of Science and Letters and held an honorary doctorate at the University of Copenhagen.
[2][3][4] Hagstrøm died on 19 January 2013, after having been in a coma since November the previous year because of choking on an item of food served during a publisher's dinner.