Failure Risk and Quality Cost Management in Single versus Multiple Sourcing Decision

Yim, Andrew (2013): Failure Risk and Quality Cost Management in Single versus Multiple Sourcing Decision. Published in: Decision Sciences , Vol. 45, No. 2 (25 April 2014): pp. 341-354.

Abstract

The advantage of multiple sourcing to protect against supplier failures arising from undependable products due to latent defects is examined using a model with non-linear external failure costs. Prior research has focused only on supplier failures arising from unreliable supply, such as late/insufficient/no delivery. I derive a closed-form characterization of the optimal production quota allocation for the LUX (Latent defect-Undependable product-eXternal failure) setting. The allocation determines the optimal supply base, with intuitive properties that hold under a mild requirement. The requirement includes the special case of equal procurement costs charged by suppliers but also allows unequal costs without any particular order. The key result of the paper is a necessary and sufficient condition determining whether single or multiple sourcing is optimal. Another condition is obtained to determine the exact size of the optimal supply base, provided the mild requirement holds. With minor modifications, the results also hold when a buyer-initiated procurement contract can be used to elicit private information on the suppliers’ unit variable production costs.

• Item Type: MPRA Paper
• Language: English
• Keywords: Supplier selection, latent defects, multiple sourcing, single sourcing, quality cost, total cost of purchasing
• Subjects: M - Business Administration and Business Economics ; Marketing ; Accounting ; Personnel Economics > M4 - Accounting and Auditing > M41 - Accounting; M - Business Administration and Business Economics ; Marketing ; Accounting ; Personnel Economics > M1 - Business Administration > M11 - Production Management; L - Industrial Organization > L2 - Firm Objectives, Organization, and Behavior > L24 - Contracting Out ; Joint Ventures ; Technology Licensing; L - Industrial Organization > L2 - Firm Objectives, Organization, and Behavior > L22 - Firm Organization and Market Structure; M - Business Administration and Business Economics ; Marketing ; Accounting ; Personnel Economics > M2 - Business Economics > M21 - Business Economics

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