peer response to: Per Jacobs and Chase (2014), the three inventory models are single-period, fixed-order quantity and fixed-time period. The single-period model is when a business is trying to sell a product that may have a limited shelf life or single selling season. They are wanting to maximize profit with minimal risk. An example of this is Spirit Halloween store that opens mid to late September to sell halloween costumes for that day. They are looking to make a profit with very low risk. The fixed-order quantity model is business that are looking to maintain a certain item in-stock and when to reorder because a certain number is to be order each time. Walmart is a perfect example of this since they are wanting to optimize their inventory cost by balancing holding cost and ordering cost. Fixed-time period model its similar to fixed-order but these items are in-stock and ready to use. I work for FedEx and this is something that I use when ordering or supplies. Every Friday I put our order in for the supplies that we are needing restocked for the following week. During I peak time of the year I would order two times a week