The International Monetary Fund (IMF) has published a new report on the issue of global monetary policy in an age of increasing digitization. No such report in 2018...
No such report exists until you provide us with a link.
Must we do this ourselves?
A Google search of "IMF Cryptocurrency Report 2018" returns a few results, they are:
And a Cointelegraph article references the same conclusion from an IMF report published "in the second week of April".
So, OP, which report are you referring to?