Sensitivity Analysis, Practitioner Style
Large-scale LP for optimizing airlift -- multiple time-space muticommodity networks, linked together with non-network constraints .
Initial results on realistic scenario: only 65% of required cargo can be delivered on time.
Analysis of result revealed most of the undelivered cargo was destined for City A from City B, so.. what if we redirect some of this cargo to City A’?
Sensitivity analysis: add ~12,000 new rows and ~10,000 columns... on-time delivery improves to 85%.