| With the development of economy and the improvement of people's living standards,perishable products play an increasingly important role in people's life,which provides good business opportunities for enterprises.Because of its perishable properties,more factors need to be considered in the process of inventory ordering.A reasonable inventory ordering strategy is very important to the success of the retailers.Therefore,the inventory ordering of perishable products has become one of the focuses of the industry and academia.There are many factors that need to be taken into account when the retailer is looking for the optimal inventory ordering strategy,among which the application of preservation technology is a very important factor.The investment of preservation technology can reduce the deterioration rate of the perishable products,thus reducing the deterioration cost of the deteriorated products.But at the same time,the investment of preservation technology will also produce costs,so it is necessary to obtain the optimal preservation technology investment to maximize the total profit of retailers.Moreover,reducing carbon emissions has become an imperative trend in various countries and regions,and relevant institutions have put forward many effective measures and policies,among which carbon tax policy,carbon cap-and-trade policy are influential.Due to the continuous expansion of the implementation scope of carbon policy,the business environment of many enterprises has changed,and the retailers operating perishable products are no exception.The retailers need to consider the impact of carbon policy.To sum up,this paper studies the inventory ordering problem of perishable goods based on the carbon constraint under the controllable deterioration rate,and provides the optimal inventory ordering strategy and optimal preservation technology investment strategy for the retailers operating the perishable goods under the carbon policy environment,so that they can obtain the maximum profit.The main research contents of this paper are as follows:Firstly,taking the retailers operating the perishable products as the research object,this paper divides into two cases:(1)the shortages are allowed and completely backordering.(2)the shortages are allowed and partial backordering.Then,assuming that the market demand is related to the selling price and the inventory level,retailers use the preservation technology to reduce the deterioration rate of perishable products.In order to maximize the retailer's profit,retailer's inventory ordering models based on carbon tax policy and carbon cap-and-trade policy are established in each case.Through a series of calculation,the optimal inventory ordering strategy and the optimal preservation investment strategy of retailers under two carbon policies are obtained.Then it further analyzes and compares the relationship between the total profit of retailers without carbon constraint and the total profit of retailers under the carbon tax policy,the relationship between the total profit of retailers under the carbon tax policy and the total profit of retailers under the carbon cap-and-trade policy.Then four models are analyzed to verify the effectiveness of the model.The sensitivity analysis is carried out to explore the influence of the main model parameters on the optimal ordering strategy,total profit and total carbon emission.The results show that:(1)under the condition of retailer's shortages are allowed,no matter fully or partially back-ordering,the retailers operating under the carbon tax policy,carbon cap-and-trade policy have their own optimal inventory ordering strategy and optimal preservation technology investment strategy to maximize their total profits.(2)when the impact of inventory level on market demand is large enough,retailers tend to reduce the number of orders to maintain a high inventory level so as to obtain more market demand.(3)the limit of preservation technology investment sometimes makes retailers unable to get the maximum profit. |
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