Research
My broad area of research is inventory and supply chain management. My research aims to develop globally relevant mathematical models and derive optimal solutions for addressing supply chain challenges using advanced mathematical optimization techniques. During the initial stage of my PhD, I worked on sustainable inventory models. In the middle phase, I focused on stochastic green supply chains and closed-loop supply chains. In the final stage of my PhD, I examined the impact of greenwashing practices on digital supply chains.
Publications
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B. Roy and N. Ghosh (2024), 'Unequal shipment policy in a sustainable production inventory system considering defective items and multi-level price breaks', International Journal of Systems Science: Operations & Logistics , 11(1), 2310627, (SCIE, Q1)
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N. Ghosh and B. Roy (2025), 'An online-offline sustainable hybrid production supply chain inventory model with controllable lead time', European Journal of Industrial Engineering, (SCIE, Q2)
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B. Roy and N. Ghosh (2026), 'Optimizing a Production-Inventory Model Under Progressive Carbon Taxation: The Role of Green Investment, Lead Time, and Price Breaks', Environmental Modeling & Assessment, (SCIE, Q2)
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N. Ghosh and B. Roy (2026), 'Impact of raw material quality and reference greening in a competitive three-echelon closed-loop dual-channel supply chain', Computers & Industrial Engineering, (SCIE, Q1)
Conferences
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Presented a paper at the 'International Conference on Emerging Trends in Business Analytics and Management Sciences, 57th Annual Convention of ORSI (ORSI-2024)'
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Presented a paper at the '18th International Conference on Mathematical Sciences for Advancement of Science and Technology (MSAST 2024)'
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Presented a paper at the '19th International Conference on Mathematical Sciences for Advancement of Science and Technology (MSAST 2025)'
