<span>The correct answer is
A keyword</span>
It sounds like you are looking for a network. If a node can not find a network to connect to, then it cannot connect.
It depends on HOW much money is circulating. If governments just print money with nothing to back it, hyperinflation occurs. If there's a bit too much money and credit, inflation happens. Generally, 3% inflation is considered normal and a healthy amount by economists.