On two-echelon inventory systems with Poisson demand and lost sales

@article{Alvarez2014OnTI,
  title={On two-echelon inventory systems with Poisson demand and lost sales},
  author={Elisa M. Alvarez and Matthieu van der Heijden},
  journal={European Journal of Operational Research},
  year={2014},
  volume={235},
  pages={334-338}
}
We derive approximations for the service levels of two-echelon inventory systems with lost sales and Poisson demand. Our method is simple and accurate for a very broad range of problem instances, including cases with both high and low service levels. In contrast, existing methods only perform well for limited problem settings, or under restrictive assumptions.