I’ve looked over your link and need to study it further.
The abstract is a good list of goals that need to be addressed.
As for as money itself, I’m inclined to see money as a representation of goods and services . . . monetarism if you will where money, to maintain its value, aligns with what’s currently produced.
As far as the distribution of money goes . . . the basic income debate is valuable to illuminate the amount necessary to maintain modest style of life thus opening the discussion as to whether the resources available are there to provide same.
As far as the concentration of money is concerned, this is a separate issue in that those with higher discretionary incomes have the ability to invest in capital assets that extend their income above their individual labor.
All in all this discussion is important if we’re to reach the ‘doughnut’ and I suggest this discussion include the sustainability link between population and resources to add the complete context.
Unfortunately at the moment, most media economist stay focused on what I term ‘happy talk’ economics where the discussion is usually reduced to just ‘more growth’ which Kate addressed the shortcomings in her Ted Talk.