Olav Bjerkholt (1942-2020) was Research Director at Statistics Norway and Professor of Economics at the University of Oslo. He was associated with PRIO projects on the economic effects of arms spending 1965–67 and 1978–96.

Upon his passing away in February 2020, Nils Petter Gleditsch wrote an obituary with a particular focus on his collaborations with PRIO. You can read this by following this link.