Would banning interest be a solution to much of capitalism's drawbacks. Free trade and exchange for money is still possible. Margrit Kennedy has detailed the cost of interest within the economy and how it transfers wealth from 90% of participants to the wealthiest 10%.
Without interest prices across the board drop by 40%, in her estimation.
Margrit Kennedy - Interest:
I am still considering her ideas, so I haven't come to a conclusion on banning usury or on anarcho-capitalism, for that matter, as yet.
RE: A Message From the Chief Anarchist For the Anarcho Capitalist Peasants.