نوع مقاله : پژوهشی
نویسندگان
گروه مدیریت، دانشکده علوم اداری و اقتصاد، دانشگاه اصفهان، اصفهان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Pricing is a mechanism to manage yield and absorb more customers. The amount of waste for perishable products such as fresh fruits and vegetables, egg, meat and fish, and cooked foods are considerable. Nowadays customers are more health-conscious and tend to buy fresher products. Setting a fixed price to a perishable product convinces customers to purchase fresher products and remain a portion of inventory unsold. Although pricing with respect to the time to expiring date can increase the demand rate of aged products and decrease the amount of waste. Having the price elasticity of demand and its impact on inventory management especially for perishable products makes investigating the pricing and inventory problems simultaneously an effective way for reducing costs and increasing the total profit. The holding cost depends on the price and the types of equipment and facilities used to preserving and holding the product. For many fresh products, the unit price of holding cost is not fixed over time, i.e., the older the product, the higher the unit holding cost. Also, the demand is influenced by several factors such as price, freshness, displayed inventory level. This research investigates a pricing-inventory problem considering a time-increasing-linear holding cost function. The ending inventory is sold at the salvage level. The problem considers a multiplicative demand function of price, freshness, and displayed inventory level. The problem is formulated as a nonlinear programming model. The model’s decision variables are the replenishment cycle, ending inventory level, the discount rate, the order quantity, and the discount time. The objective function is to maximize the retailer’s total profit. Some theorems are proved to study the concavity of the objective function. A search algorithm is proposed based on the model specifications. Finally, an example is solved and the sensitivity of some parameters is analyzed to illustrate theoretical and managerial aspects.
کلیدواژهها [English]
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