Evolution Analysis On Quality Incentives In "Main Manufacturer-Suppliers" Mode

In the "main manufacturer-multiple suppliers" supply-demand mode, the main manufacturer and suppliers of the high-end equipment manufacturing industry are often characterized by bounded rationality and incomplete information, thus bringing challenges to the multiparty game of dynamic equipment quality control. This study models the part quality incentive with an evolutionary game between the main manufacturer and suppliers and discusses the stability of each equilibrium point. Furthermore, the impacts of the main manufacturer cost subsidies and supplier effort levels on strategy evolution are analyzed. Simulation results indicate that suppliers tend to improve the part quality as cost subsidies increase and required effort levels decrease. Additionally, the main manufacturer tends to incentivize suppliers with increased cost subsidies and decreased required effort levels. The findings define the effective range of cost subsidies and effort levels while providing theoretical references for studying the game decisions of the main manufacturer and suppliers.