The industry and transportation sectors account for more than 35% of the global CO2 emissions and there is an increasing pressure on industry to reduce emissions. To remain competitive in their markets while reducing their emissions, companies need to re-optimize their entire value chain...

Multi-echelon inventory optimization literature distinguishes stochastic- (SS) and guaranteed-service (GS) approaches as mutually exclusive frameworks. While the GS approach considers flexibility measures at the stages to deal with stockouts, the SS approach only relies on safety stock. Within a...

We analyze a single-product, periodic-review, stochastic demand inventory model with backorders and two supply options, a regular and a more expensive expedited one, with deterministic, offsetting lead times. Since the optimal policy for such a problem is generally unknown, several simpler...