Carbon offset trading is popular in this day and age.
Less "atmospheric", and closer to home, many local communities use similar schemes to keep money from flowing out of the community by creating systems that allow locals to trade their services with each other either directly or indirectly. Kind of barter, but not exactly. "LETS" (Local Energy Trading Schemes) is one of the terms that describes these kinds of systems. "Ithaca Hours" is one of the largest and most well-known of these schemes. My BIL lives on a farm near a country town and participates in a LETS-type system - one time we went with him to pick up fifteen bails of hay he'd gotten in exchange for a massage (apart from running the farm, his other source of income is massaging people in town on a Sunday)
My mind was wandering lazily today when it struck me that the Watchtower community is the perfect place for such a scheme to take place. Because apart from hard cold cash, the Watchtower's other currency is: TIME! Specifically, hours spent "in service". It's the perfect set-up for a LETS-type scheme: you have time rich people who clock up field service hours, and any excess over their minimum monthly requirements are "wasted", whereas others are time poor and earning a living. Since 10 hours is the monthly minimum for healthy adults in good standing, blocks of 10 hours could be the standard unit of trade. Someone who had a couple of these to spare at the end of the month could trade one for, say, a haircut from a brother who was a barber, and another to get their lawn mowed. The barber and the lawnmowerman could both claim 10 hours each on their monthly reports. All sorts of services would be available within the JW community: cleaning, window-washing, car-washing, repair work, ferrying people around and so on. A poor but time rich Dub could get a lot of stuff done for them without the need for money, while busy Dubs could hand in decent field service hours - a total Win-Win situation. And there's absolutely no dishonesty involved - no-one would report hours that hadn't been spent (by someone, at least) in field service! Suddenly more Dubs would be looking better on paper to the WBTS, and with some real incentives, those Dubs clocking up the hours in order to trade them would raise the average hours spent in Field Service.
Of course, it probably wouldn't work. It'd take a bit of doing to set up, and would have to be kept secret from the Borg. The Borg would never sanction it because, even more than money, they love control, and such a scheme would be a way to dilute that control away from their central authoritarian structure, and into the hands of the local Dub communities. And we couldn't have that, now, people! Could we??