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Vol. 28. Núm. 122.
Páginas 29-48 (Enero - Marzo 2012)
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Vol. 28. Núm. 122.
Páginas 29-48 (Enero - Marzo 2012)
Open Access
Modelo de asignación de compras a proveedores considerando su flexibilidad y probabilidad de incumplimiento en la entrega
A supplier allocation model considering flexibility and likelihood of delivery failures
Modelo de designação de compras a fornecedores considerando sua flexibilidade e probabilidade de descumprimento na entrega
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3453
Alex Jesús Ruiz Torres
Miembro de la Escuela Graduada de Administración de Empresas, Universidad de Puerto Rico, Puerto Rico
José Humberto Ablanedo Rosas
Miembro de la Facultad del College of Business Administration, University of Texas at El Paso, Estados Unidos
Jorge Ayala Cruz
Miembro de la Escuela Graduada de Administración de Empresas, Universidad de Puerto Rico, Puerto Rico
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Información del artículo
Resumen

La selección de proveedores es un proceso trascendental en la gestión de la cadena de suministro y en la competitividad empresarial. Este trabajo presenta un modelo de decisión que optimiza la asignación de la demanda a un grupo de proveedores, considerando las pérdidas esperadas debido a incumplimientos, costos de compra, costos imprevistos por faltas en las entregas de suministros y el costo de gestión de un conjunto de proveedores. Un análisis de experimentos y de sensibilidad es implementado para estudiar el comportamiento del modelo con respecto a parámetros clave. Los resultados comprueban que el modelo es sensible a estos parámetros y demuestra la utilidad del modelo para los responsables de la toma de decisiones en esta área.

Palabras clave:
Cadenas de abastecimiento
gerencia de la cadena de suministro
selección de proveedores
modelos de decisión
Abstract

Supplier selection is a critical process in supply chain management and business competitiveness. This article presents a decision-making model that optimizes allocation of demand across a set of suppliers considering expected losses associated with delivery defaults, purchasing costs, unforeseen costs of non-delivered supplies, and supplier management costs. An experimental and sensitivity analysis was carried out to study the behavior of the model with regard to key parameters. The results reveal that the proposed model is sensitive to these parameters and demonstrate the usefulness of the model to decision makers in this field.

Keywords:
Supply chain
supply chain management
supplier selection
decision models
Resumo

A seleção de fornecedores é um processo transcendental na gestão da cadeia de abastecimento e competitividade empresarial. Este trabalho apresenta um modelo de decisão que otimiza a designação da demanda a um grupo de fornecedores, considerando as perdas esperadas devido a descumprimentos, custos de compra, custos imprevistos por falhas nas entregas de provisões e o custo de gestão de um conjunto de fornecedores. Uma análise de experimentos e de sensibilidade é implementada para estudar o comportamento do modelo em relação a parâmetros-chave. Os resultados comprovam que o modelo é sensível a estes parâmetros e demonstra a utilidade do modelo para os responsáveis pela tomada de decisões nesta área.

Palavras-chave:
Cadeias de abastecimento
gerenciamento da cadeia de abastecimento
seleção de fornecedores
modelos de decisão
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