Simulation of pork supply chain based on system dynamics model. (5th April 2023) - Shao, Qianqian
In most of the advanced researches of pork supply chain (PSC) analysis, the systematic behaviour is only studied locally, and does not focus on the influence of different consumer demand changes on the system behaviour. In order to make the simulated PSC more authentic, different combinations of three demand types (random demand, sudden demand and cyclical demand) are considered in this model. Within the PSC, there is a causal relationship between the actions of enterprises. And system dynamics (SDs) can build complex system models to solve complex dynamic problems. Therefore, we analyse the PSC and integrate the system flow diagram and variable equations into a SD flowchart to study the internal behaviour. Taking Shenyang (China) PSC in 2020 as an example, the system behaviour was observed. In addition, the influence of price delay and transportation delay on pork price is further discussed.