My nomination for best word is 'broconomy'
(it sounds better than it looks).

Its the vast economy of favours, discounts, cash jobs, free work etc that comes from people without much surplus cash, or those that deal with people without much surplus cash. ie, creative industries, and/or lower income demographics.

It especially concerns communities where relationships are stable over reasonable periods, so that favours can be paid and repaid in the future. Its sort of an acknowledgment of community economics.