Can I just add my voice to support what @Maphylius said in this thread that QE should reduce interest rates (as also argued for separately in this thread: Quantitative Easing Suggestion).
If it doesn’t already, then for balance interest rates could increase inflation (& it makes sense for inflation to be a major economic factor that the player should need to keep an eye on - as in real life - which means benefits as well as costs.)
If @cliffski feels more of a downside is needed, then QE could cost more political capital and could severely reduce happiness of socialists and middle income (because of the opportunity cost of not doing helicopter money & so putting more cash in people’s pockets). Any chance of looking again at this?
Also agree that DMF makes sense as a policy: if you can print money for citizens then you can do so for the treasury too.