For a profit allocation game, one key issue is to find a fair allocation of profit among its players. In this paper, a proportional egalitarian core solution is proposed, which defines in the core of a game an allocation that takes account of each player's contribution to the grand coalition....

We consider the production/inventory control for a recoverable system with stochastic demand and returns where stock is replenished by manufacturing new items or remanufacturing returned items. The optimal control policy found by solving a Markov decision process (MDP) for a given problem...

Production systems with scrapped and rework items have recently become an interesting subject of research. While most attempts have been focused on finding the optimal production quantity in a simple production system, little work appears on a joint production environment. In this research, two...

Nowadays, supply chain management (SCM) is a popular practice in manufacturing systems. The concept of SCM has forced members to find ways to cut costs and bring performance benefits to the firms. In the creation of long-term partnerships in the supply chain, the collaboration between supply...

A stochastic version of the economic lot sizing problem with pricing is presented. The control variables of the stochastic problem are the production quantities and cycle lengths for each product. The recourse variables are the sales prices and the external purchase quantities in each production...

An inventory system containing uncertainty, e.g., in demand, in costs, in lead time, or in supplied quantity or quality, needs a probability distribution of demand for reorder point models. In the literature on inventory control, many times reference is made to the Normal or Gamma distribution...

An inventory system containing uncertainty, e.g., in demand, in costs, in lead time, or in supplied quantity or quality, needs a probability distribution of demand for reorder point models. In the literature on inventory control, many times reference is made to the Normal or Gamma distribution...

In this paper, we propose to discuss profitability conditions of a subcontracting constraint for subcontractor companies. The subcontracting imposes unavailability periods of the production unit in order to periodically perform subcontracting tasks (ST). We study the subcontracting constraint...

In this paper, a framework for assessing the cost effectiveness of lean tools is developed. The framework consists of eight phases within the plan-do-check-act (PDCA) problem solving and continuous improvement cycle. The framework was verified using a case study of a sawmill process at a wood...

A modified median chart with estimated control limits is proposed for monitoring the mean value of a normal process. The estimates for the nominal process parameters used to set up the control limits in Phase I are the average of the sample medians and the average of the sample ranges of m...