Journal
INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH
Volume 26, Issue 4, Pages 1558-1575Publisher
WILEY
DOI: 10.1111/itor.12505
Keywords
quality and physical quantity deterioration; dynamic pricing; quality investment; replenishment; Pontryagin's maximum principle
Funding
- National Natural Science Foundation of China [71601162, 71672153, 11671329]
- Fundamental Research Funds for the Central Universities [26816WBR01]
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The deterioration of perishable items results not only in direct quantitative losses, but also in qualitative losses, which would reduce the customer acceptability. To maintain or improve the quality level, sellers usually invest in functionality, aesthetics, safety or any other attributes. In addition to quality, price also plays a critical role in influencing the purchase choice of consumers and the profit of a firm. Most inventory management models for perishables are restricted to physical quantity deterioration and do not address joint dynamic pricing and quality investment strategies. This paper studies an optimal replenishment model with dynamic pricing and quality investment for perishable products, where the quality and physical quantity deteriorate simultaneously. The demand rate is decreasing in sales price and increasing in quality level. A dynamic optimization model is proposed to maximize the total profit per unit time and solved on the basis of Pontryagin's maximum principle. The optimal joint dynamic pricing, quality investment, and replenishment policy is obtained. A numerical example and sensitivity analysis on the key system parameters are presented to illustrate the validity of the theoretical results. Some managerial implications for the pricing and quality investment for the perishables are provided.
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