Optimal policies for production-clearing systems under continuous-review


Germs R., Van Foreest N. D. , Kilic O. A.

EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, cilt.255, sa.3, ss.747-757, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 255 Konu: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.ejor.2016.05.004
  • Dergi Adı: EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
  • Sayfa Sayıları: ss.747-757

Özet

In this paper, we consider a production-clearing system with compound Poisson demand under continuous review. The production facility produces one type of item without stopping and at a constant rate, and stores the product into a buffer to meet future demand. To prevent high inventory levels, a clearing operation occasionally removes all or part of the inventory from the buffer. We prove that an (m, q)-policy, i.e., a policy that clears the buffer to level m as soon as the inventory hits a level q, minimizes the long run average holding and clearing cost. We also derive a numerically very efficient approach to compute the optimal parameters of the (m, q)-policy for models with backlogging and models with lost sales. With these numerical methods we show that tuning the clearing levels m and q in concert can lead to substantial cost savings. (C) 2016 Published by Elsevier B.V.