16th International Symposium on Inventories, Budapest, Macaristan, 23 - 28 Ağustos 2010, ss.28
Optimal pricing and production planning decisions
in reusable container systems
Büsra Atamer, Ismail Bakal, Pelin Bayindir
Middle East Technical University, Industrial Engineering Department, Turkey
The main objective of the study is to focus on the decision making problems in reusable
container systems with stochastic demand. Optimal pricing and production planning
decisions in reusable container systems result in more pro!table and environmental-friendly
production alternatives for manufacturers and cheaper products for consumers. One typical
example of reusable container systems is a beverage production system using re!llable
bottles. Customers purchase the products within reusable containers and then may return
the container to the producer in consideration of a deposit price. The return amount is neither
constant nor deterministic; it depends on both customer demand and the deposit price
determined by the producer. Hence, the manufacturer has the opportunity to manipulate
the return quantity via the deposit price. Since only a proportion of the containers will be
returned throughout the period, the producer also has to decide on the quantity of brand
new reusable containers to be purchased. The unit cost of production with a new reusable
container is di"erent from the unit cost of re!lling a returned container when collection
and set up costs are taken into account. Also, there may be a capacity restriction on the
manufacturing and remanufacturing operations. That is, production planning and pricing
decisions are to be made simultaneously for a synchronized reusable container system. Our
approach utilizes constrained non-linear optimization techniques. The study is completed
with the investigation of the model analytically and computationally. Our analytical
and computational results show us that, the unit pro!t margins of di"erent production
alternatives are not adequate in indicating the most pro!table pricing and production
planning option; but an overall view to the reusable container system is required.
Keywords: Closed-loop supply chains, Reverse logistics, Reusable containers, Deposit –
refund systems