The structure of periodic review policies in the presence of random yield
Operations Research
Diversification under supply uncertainty
Management Science
Supply Contract Competition and Sourcing Policies
Manufacturing & Service Operations Management
Optimal Replenishment and Rework with Multiple Unreliable Supply Sources
Operations Research
Competition and Diversification Effects in Supply Chains with Supplier Default Risk
Manufacturing & Service Operations Management
Supplier diversification: effect of discrete demand
Operations Research Letters
Modeling supplier selection and the use of option contracts for global supply chain design
Computers and Operations Research
Impact of Supply Learning When Suppliers Are Unreliable
Manufacturing & Service Operations Management
Cournot Competition Under Yield Uncertainty: The Case of the U.S. Influenza Vaccine Market
Manufacturing & Service Operations Management
Optimal Supply Diversification Under General Supply Risks
Operations Research
Mitigating Supply Risk: Dual Sourcing or Process Improvement?
Manufacturing & Service Operations Management
Independence of Capacity Ordering and Financial Subsidies to Risky Suppliers
Manufacturing & Service Operations Management
Optimal Control of Inventory Systems with Multiple Types of Remanufacturable Products
Manufacturing & Service Operations Management
Optimal Procurement Design in the Presence of Supply Risk
Manufacturing & Service Operations Management
Operational causes of bankruptcy propagation in supply chain
Decision Support Systems
Optimal newsvendor policies for dual-sourcing supply chains: A disruption risk management framework
Computers and Operations Research
Manufacturing & Service Operations Management
TECHNICAL NOTE---Procurement Strategies with Unreliable Suppliers
Operations Research
Supplier Diversification Strategies in the Presence of Yield Uncertainty and Buyer Competition
Manufacturing & Service Operations Management
Manufacturing & Service Operations Management
On the supplier diversification under binomial yield
Operations Research Letters
Unreliable newsboy problem with a forecast update
Operations Research Letters
Managing Disruption Risk: The Interplay Between Operations and Insurance
Management Science
Computers and Operations Research
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We consider the problem of a newsvendor that is served by multiple suppliers, where any given supplier is defined to be either perfectly reliable or unreliable. By perfectly reliable we mean a supplier that delivers an amount identically equal to the amount desired, as is the case in the most basic variant of the newsvendor problem. By unreliable, we mean a supplier that with some probability delivers an amount strictly less than the amount desired. Our results indicate the following effects of unreliability: From the perspective of the newsvendor, the aggregate quantity ordered is higher than otherwise would be ordered if the newsvendor's suppliers were completely reliable. From the perspective of end customers, however, the service level provided is lower than otherwise would be provided if the newsvendor's suppliers were completely reliable. From the perspective of the suppliers, although reliability affects how much is ordered from a selected supplier, cost generally takes precedence over reliability when it comes to selecting suppliers in the first place. Even perfect reliability is no guarantee for qualification since, in an optimal solution, a given supplier will be selected only if all less-expensive suppliers are selected, regardless of the given supplier's reliability level. Nevertheless, the relative size of a selected supplier's order depends on its reliability.