Simulation with Two Decision Variables: An Inventory Example
Often, there is more than one variable to be simulated. In Example F1 it was demand for tires. But many OM decisions have multiple variables. In a queuing situation, it may be arrival times and service times. In an inventory problem, as we saw in Chapter 12, both demand and lead time might be variable (not constant).
Student Tip 
Most real-world inventory systems have probabilistic events and benefit from a simulation approach.
In this section, we present an inventory problem with two decision variables and two probabilistic components. The owner of the hardware store in Example F2
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