In this study, a fuzzy multi-objective joint replenishment inventory model of deteriorating items is developed. The model maximizes the profit and return on inventory investment (ROII) under fuzzy demand and shortage cost constraint. We propose a novel inverse weight fuzzy non-linear programming...

This study explores an efficient approach for identifying chaotic phenomena in demands and develops a production lot-sizing method for chaotic demands. Owing to the butterfly effect of chaotic demands, precise prediction of long-term demands is difficult. The experiments conducted in this study...

In the last few decades, enterprises are trying to recycle the used products to reduce the negative impact on environment. This results in the need for reverse supply chain model especially for deteriorating items. The proposed model considers vendor managed inventory strategy and conducts a...

In this note, we extend Pentico et al. (2011)'s [1] EPQ model where the authors considered two different backordering rates during shortage period; they assumed the backordering rate increases only from the start of production phase. We propose two models that allow the backordering rate to...

The ordering policy for retailers and the suppliers' system are influenced by lead time and deterioration. In this study, we consider deteriorating items with triangle-shaped demand and uncertain lead time. The triangle-shaped demand has the characteristic of increasing demand during the...

This paper develops a newsboy problem with option contract and partial backorders. In this option contact policy, if the demand exceeds the order quantity, the retailer may have a second replenishment opportunity to order an option quantity from the manufacturer in order to fulfil its...