= In labour credit systems, the social exchange of services (i.e. work) is conducted on the basis of a non-monetary measure, typically a unit of time.
Example: used at Twin Oaks intentional community. See chapter 9 of the book: Nelson A and Timmerman F (2011) (Eds) Life Without Money: Building Fair and Sustainable Economies. Pluto Press: London. ISBN: 978-0-7453-3165-2. Hardcover and paperback,