Modelo matemático de un sistema coordinado productor-comprador bajo el enfoque VMI

Modeling a coordinated manufacturer-buyer single-item system under vendor-managed inventory

  • Fidel Torres Universidad de los Andes
  • Frank Ballesteros Universidad de los Andes
  • Marcela Villa Universidad Pontificia Bolivariana
Keywords: Vendor-managed inventory, supply-chain integration, information sharing, coordination. (en_US)
Keywords: Inventarios administrados por el vendedor, integración de la cadena de suministros, coordinación de procesos logísticos. (es_ES)

Abstract (es_ES)

En este trabajo se desarrolla un nuevo modelo matemático de un sistema coordinado productor-comprador mediante un acuerdo de inventarios administrados por el vendedor (VMI). El modelo propuesto considera el tiempo de fabricación del lote e incluye un esquema de sincronización entre el productor y el comprador que facilita la coordinación de la cadena de suministros. El análisis del modelo matemático de coordinación tiene en cuenta las tasas de producción y de demanda y los costos totales anuales de ordenar y mantener inventarios del productor y del comprador. El estudio es complementado por un análisis de sensibilidad que se enfoca sobre los efectos de las variaciones de los parámetros sobre algunas medidas de desempeño en el esquema coordinado VMI entre el productor y el comprador.  Finalmente, se deducen y verifican las condiciones analíticas bajo las cuales la implementación coordinada de VMI otorga beneficios al productor, al comprador y a la cadena de suministros. Los resultados muestran que es posible que el productor y el comprador obtengan beneficios en la implementación de VMI seleccionando una combinación apropiada de los parámetros usando el esquema de coordinación propuesto en una relación gana-gana.

Abstract (en_US)

This work develops a new coordinated manufacturer-buyer model for a single item in a vendor-managed inventory (VMI) context. The proposed model includes the manufacturing uptime and a manufacturer-buyer synchronization scheme. This mechanism makes logistical coordination between manufacturer and buyer much easier. The analysis of the mathematical model of coordination considers production and demand rates, as well as totals of the manufacturer and the buyer’s ordering and holding inventory costs. This study is complemented by a sensitivity analysis. It focuses on the effects of parameter variations on proposed performance measurements in the manufacturer-buyer VMI coordinated scheme. Finally, analytical conditions under which the suggested coordinated implementation of VMI gives benefits to both manufacturer and buyer and to the supply chain are deduced and verified.

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How to Cite
Torres, F., Ballesteros, F., & Villa, M. (2012). Modeling a coordinated manufacturer-buyer single-item system under vendor-managed inventory. Ingeniería, 17(2), 6 - 25. https://doi.org/10.14483/23448393.3851
Published: 2012-12-28