Violation of scientific norms
Petter Bjerksund and Guttorm Schjelderup: Thore Johnsen and Terje Lensberg's arguments about wealth tax were refuted in 2016, proven to be logically inconsistent. There was never a response, so the line has been drawn and the error admitted. Now they are using them again.
In an opinion piece in Dagens Næringsliv on 29 August, Thore Johnsen, Terje Lensberg, Jøril Mæland and Karin Thorburn "debunk" myths about wealth tax (Seiglivede myter om formuesskatt (in Norwegian) - "Persistent myths about wealth tax").
Petter Bjerksund and Guttorm Schjelderup respond to this, in their opinion piece Brudd på vitenskapelige normer (in Norwegian), published in Dagens Næringsliv on 2 September, 2025.