Interesting:
The network enforces a continuously assessed 4.4% APR fee on all account holders. This fee acts as a tax on stagnant money, driving up the rate at which money flows through the economy and acting as an economic stimulus, and discouraging unproductive hoarding by the 1%. The proceeds of the demurrage tax are repayed transparently and proportionally to the community members who donate computer time to running software that regulates and enforces the rules of the network.