| Author | Joshi, Sidharath |
| Call Number | AIT Diss. no.ISE-24-03 |
| Subject(s) | Business logistics--Mathematical models
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| Note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering in Industrial and Manufacturing Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | In the current complex global environment, the need of strategic sourcing, fostering long-term relationships, implementing risk-sharing mechanisms, and ensuring mutually beneficial outcomes for all members of supply chain networks have gained significant attention. Many high-tech items with high clock speed nature are currently seeing shorter life cycles leading to uncertain demand with high chances of prediction errors. Moreover, the recent upsurge in disruptive events globally has emphasized the importance of resilience in supply chain management. In this dissertation, we developed three mathematical models to establish capacity reservation contract for different supply chain network to address challenges of high-tech products with longer lead time and disruptions at supply side. The research focuses on interaction of retailers and suppliers while optimizing the profits independently to achieve Nash equilibrium. These models provide unique optimal capacity decision for retailers and suppliers.In the first model, a single supplier and single retailer mathematical model was developed. The proposed model helps to find the unique optimal solutions for the reserved capacity of retailer to the supplier and constructed capacity of the supplier. This model provides a flexible capacity construction decision for supplier to maximize his profit under demand uncertainty of the retailer. To build risk sharing mechanism, penalties to retailer for not exercising the reserved capacity were added in the model. Sensitivity analyses were also conducted to examine the impact of contract parameters on decision variables.In the second model, we derived a dual sourcing model using capacity reservation contracts for a supply chain consisting of a retailer, a primary supplier who may experience disruption, and a reliable backup supplier. This dual sourcing model is a reactive strategy that balances flexibility and redundancy to improve supply chain resilience. The aim of the proposed model is to help find optimal solutions for the reserved capacities of the retailer to the suppliers and the constructed capacities of the suppliers. It has been derived in this model that the reserved capacities and constructed capacities exist uniquely. Sensitivity analyses were also conducted to examine the impact of contract parameters on decision variables. This model contributes to existing knowledge by providing deeper insights into the application of the capacity reservation contract to handle supply disruption.In the third model, a single supplier and dual retailers mathematical model was developed, in which supplier may experience disruption. When the disruption occurs at the supplier, she acquires the capacity from the other suppliers. The proposed model helps to find the unique optimal solutions for the reserved capacity of retailers to the supplier. This model provides the supplier a flexible capacity construction decision to maximize his profit. Sensitivity analyses were also conducted to examine the impact of contract parameters on decision variables. |
| Year | 2024 |
| Type | Dissertation |
| School | School of Engineering and Technology |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial and Manufacturing Engineering (IME) |
| Chairperson(s) | Huynh, Trung Luong |
| Examination Committee(s) | Mongkol Ekpanyapong;Chutiporn Anutariya |
| Scholarship Donor(s) | His Majesty the King’s Scholarships (Thailand) |
| Degree | Thesis (Ph. D.) - Asian Institute of Technology, 2024 |