 In an opinion published in February 2019, it argued that it conflicted with the principle of "sincere cooperation" set out in Article IV of the Treaty on European Union, and noted that no ban was planned for other high-value units of currency, such as the highest Swiss franc banknote, worth more than 6,500 DKK at the time.If Denmark were to adopt the euro, the monetary policy would be transferred from the Danmarks Nationalbank to the ESCB.In theory this would limit the ability of Denmark to conduct an independent monetary policy.