complementary currencies komplementärwährungen freigeld domesticate capitalism global reference currency single global currency blockchain pago movil monedas inteligencia socia esquema de pago local sustainability social justice social currencies degrowth-movement complementary economy time accounts community currency money demurrage money local business monetary neutralization modern monetary theories debt crisis complementary currency euro crisis deflationary crisis superneutralisation protected currency area time money (lets) entwicklungsländer developing countries währungsraum globale referenzwährung weltwährung world reference currency fractional reserve banking silvio gesell public debts financial crisis modern monetary theory
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