Abstract

It is a challenging task to manage a perishable food supply chain (PFSC), due to the product’s short lifetime and to demand uncertainty. Even worse is the fact that, because of the multitude of participating stakeholders in production, distribution, and retailing, the PFSC becomes complex and thus particularly vulnerable to crises. Product shortages that result from an outbreak like COVID-19 often cause customers to seek alternative sources of supply, possibly with a larger purchasing amount (i.e., hoarding), leading to even severer demand uncertainty after the shortage period. To manage a sustainable and resilient PFSC after an outbreak, supply chain partners need to share and use the right information to facilitate decision making. A system dynamics simulation was thus applied to study a cheese supply chain with three tiers. Three scenarios that cause product shortages were simulated. Seven balanced feedback loops and two reinforced feedback loops were identified from the simulation model. Through the feedback loop dominance analysis, we identified four dominant loops that facilitate the generation of endogenous demand. In order to alleviate the negative influence of endogenous demand, it is suggested that the information sharing that causes endogenous demand be stopped and a loosely coupled strategy to support decision making utilized.

Highlights

  • It is a challenging task to manage a perishable food supply chain (PFSC), due to the product’s short lifetime and demand uncertainty

  • The underlying principle is that if process structure determines system behavior, and system behavior determines supply chain performance, the key to information sharing and decision making is acknowledging the relationship between processes and phenomenon and managing the dominant feedback loops

  • To evaluate the level of resilience for PFSC, we propose that lost sales should be the other performance measurement in our simulation

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Summary

Introduction

It is a challenging task to manage a perishable food supply chain (PFSC), due to the product’s short lifetime and demand uncertainty. The product shortage often further causes customers to seek alternative sources of supply [5], possibly with a larger purchasing amount (i.e., hoarding) [6], leading to even severer demand uncertainty after the shortage period. This is exactly what we have witnessed during and after the COVID-19 outbreak in China: during the outbreak, production and/or distribution capacity shrank and customers hoarded larger safety stocks; while after the outbreak, consumers’ overall confidence declined [7]. To better handle the situation after the outbreak, the access to reliable and timely information about looming risks and their consequences for consumer behavior is of high importance for the management of PFSC [8]

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