Money that is not being spent is almost always being invested. If cash is literally being hoarded under a mattress it’s neither being spend nor invested but tha

Money that is not being spent is almost always being invested. If cash is literally being hoarded under a mattress it’s neither being spend nor invested but that means that the value of everyone else’s money goes up by some infinitesimal amount. If Bill Gates turned his entire fortune into cash and then set it on fire the assets that that cash used to represent would not disappear. Bill Gates would just have made all other holders of dollars a bit richer.