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Vensim Help

ØCheck the model for errors with Model>Check Model (or Ctrl + T).
ØSimulate the model using the dataset name cust3.
ØClick on the Control Panel button then on the Datasets tab.  Load the datasets cust1 and cust2 if not already loaded.
ØSelect the variable new customers as the Workbench Variable and click on the Graph tool.

Notice how the curve for new customers in cust3 builds more slowly, peaks later and lasts longer than for the other runs.  This behavior comes from the constraint in Capacity, which is lower in cust3.mdl than cust2.mdl because of capacity reductions (retirement due to old age).