Some comments on retailer's inventory model under supplier's partial trade credit policy

Huang (2005) presents retailer's inventory model under supplier's partial trade credit policy. He developsa theorem to characterize the optimal solution. Although his inventory model is correct and interesting, processes of arguments of that theorem to search for the optimal replenishmentcycle time arc not complete. So, the main purpose of this paper is to overcome those shortcomings and present a complete proof for Huang (2005).