Optimal inventory policies for remanufacturing inventory systems with multiple returns

This paper considers a remanufacturing inventory system with multiple returns, and derives the optimal policies for its inventory replenishment. To adapt more generic industry applications, dynamic demands and returns are incorporated into the remanufacturing inventory system. The results show that the optimal policies are not independent among classes under certain state conditions. In addition, we also obtain the transition among the state conditions to give a clear picture on how the system behaves dynamically.