Larrasse Imane Houamed Kenza Houamed Kenza2025-06-042021ROM/157https://dspace.univ-bba.dz/handle/123456789/311For several decades, companies have generally seen their fund inflows decrease. Some companies are required to maintain fairly high inventory levels in order to provide excellent customer service. In such a context, importance of properly managing inventory is crucial. Another interesting fact is that inventory management is no longer perceived as a narrow discipline and simply associated with specific issues such as determining the quantities to order and their delivery times when these are fixed, the resolution is simple if not. This is not the case therefore the structural analysis and the optimal policy calculation, the resolution is by Monte Carlo simulation methods are generally applicable.frThesis