In many multi-echelon inventory systems, the lead times are random variables. A common and reasonable assumption in most models is that replenishment orders do not cross, which implies that successive lead times are correlated. However, the process that generates such lead times is usually not well defined, which is especially a problem for simulation modeling. In this paper, we use results fro...

This work is concerned with the efficient design of a reverse logistics network using an extended version of models currently found in the literature. Those traditional, basic models are formulated as mixed integer linear programs (MILP-model) and determine which facilities to open that minimize the investment, processing, transportation, disposal and penalty costs while supply, demand and capa...

Planning disassembly operations for a given demand in components is challenging practice because the quality of recovered very uncertain, and thus duration refurbishing unpredictable. In this paper, we address capacitated lot-sizing problems under uncertain durations. More precisely, consider two-level system with single type end-of-life product, dynamic demand, stochastic lead times all compon...