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Annals of Operations Research

, Volume 271, Issue 2, pp 971–997 | Cite as

Precautionary replenishment in financially-constrained inventory systems subject to credit rollover risk and supply disruption

  • Oleg SokolinskiyEmail author
  • Benjamin Melamed
  • Ben Sopranzetti
OR Modeling/Case Study
  • 88 Downloads

Abstract

We consider a limited-liability firm that owns a finite single-product inventory subject to periodic-review replenishment and a corporate treasury that mediates the firm’s financial transactions related to inventory operations. The firm may elect to borrow money to purchase product via a revolving line of credit, secured by a compensating balance which determines the credit limit. The line of credit is subject to rollover risk, namely, each period the funding entity may, with some probability, refuse to roll over the line of credit. In response, the firm can search for an alternate funding entity, but in so doing it may incur search costs, primarily in the form of lost sales. The firm optimizes inventory replenishment order sizes and decides whether it should declare bankruptcy, as function of its inventory and available capital. The recent credit crunch has rendered illiquidity a critical concern for funding and operating decisions in enterprises. This paper addresses optimal inventory management in the face of liquidity shocks and supply disruptions. We show that rollover risk and supply disruption are important considerations for firms that rely on external funding. Rollover risk alone results in optimal inventory replenishment policies that differ materially from those specified by traditional supply chain models; differences manifest as state-dependent precautionary replenishment or cash hoarding. Inventory management models which fail to take rollover risk and supply disruption risk into account can prescribe suboptimal replenishment policies. Such policies would generate suboptimal profits for firms that rely on short-term financing to fund their working capital.

Keywords

Bankruptcy Financial constraints Inventory control Precautionary replenishment Rollover risk Supply disruption 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018
corrected publication August 2018

Authors and Affiliations

  1. 1.Department of Finance and Economics, Rutgers Business School - Newark and New BrunswickRutgers UniversityPiscatawayUSA
  2. 2.Department of Supply Chain Management, Rutgers Business School - Newark and New BrunswickRutgers UniversityPiscatawayUSA

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