One of my side project ideas is to implement something like this for money. That way individuals and groups can be more transparent about how they spend money.
I have a hypothesis about health care, which is that the public health care systems are more efficient, simply because it's possible to find out where the money goes if it's all coming out of one checkbook. Our system is designed to hide the ultimate beneficiaries.
Indeed, and the "single hospital" is actually multiple business entities that are all billing one another for service and trying to maximize the return on their own capital investment.
