Very, very simplistic. Much more applicable to TCP network throughput, travelling salespeople than financial transactions

Missing ::

* Real World Transaction costs [ state, federal, international tax . Exchange volume discounts ]

* Risk [ counterparty , timing, many more ]

* Traceability : Ensuring decisions made are recorded and deterministic

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See After the Trade is Made for an accepted analysis of distributing securities.

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http://www.amazon.com/After-Trade-Made-Processing-Transactio...