Will Ruddick, development economist and founder of Grassroots Economics, has spent the past 16 years in Kenya developing innovative "community inclusion currencies" for dozens of poorer communities. By combining ancient mutual aid practices with credit vouchers (circulating as a kind of money) and digital ledger technologies (to expand the scale of exchange), people are able to develop their own economic commons to meet everyday needs. Ruddick credits the success of the currencies to "commitment pooling" protocols that have long been used by Indigenous and traditional communities. Blog post: https://www.bollier.org/blog/will-ruddick-commitment-pooling-build-economic-commons