Complementary Currency Open Source Exchanges Types of Economy –Gift Economy –National Money –Barter –Complementary Currency There is a trust in the community •Woolly Mammoth • Glynn Isaac -“Home Base” –positive-selfish vs. negative-generous interest •Not value-neutral (all economics assumes value-neutral) •Taxes must be paid back •Legal right to enforce an obligation •Who has the trust? •One to one •Inefficient: startup cost for each relationship Barter