The Double coincidence of Wants is solved by any Medium of Exchange (MoE). The bigger issue in my opinion is how to manage the creation of new MoE. The current

The Double coincidence of Wants is solved by any Medium of Exchange (MoE). The bigger issue in my opinion is how to manage the creation of new MoE. The current system "solves" this by empowering a group (banks) to issue new MoE via loans. We have a significant body of history on the "efficacy" of this approach. How does Crypto currency, Bancor or other, improve the management/new creation issues?