Structuring the in and out queues

Mutual MMFs invest in short-term money market instruments that do have some present value risk.[2] But instead of concentrating this risk on the last depositors in line the way traditional banks do, mutual MMFs efficiently spread this risk over their shareholders so that each is bearing a negligible risk. If a sudden rise in interest rates, or even a spontaneous withdrawal of funds, causes share values to fall relative to the promised future payments of the assets, the return to putting money back in will simply rise. In other words, the longer the line at the front door to take money out, the longer the line will be at the back door to make new investments. Mutual MMFs are therefore run-proof, without any need for government deposit insurance.[3]

Money market funds based on share value will cause th in and out queue to order properly.  The prior system was unordered queues, first in first out.  That is not optimum congestion.

This is not know stuff, money market funds have used the queueing model forever.  What is different is that e can structure the queues to their optimum generator with spreadsheet function.