The organization of sports events, while generating economic benefits, inevitably imposes significant environmental pressures. Conducting green and low-carbon sports events have become a global consensus. In addressing the carbon emissions and benefit coordination issues on the production end of infrastructure construction for large-scale sports events, we considers the significant role of digital platforms in the industry’s low-carbon transformation and upgrade, and innovatively incorporates platforms as decision-making entities and investigates the equilibrium strategies for low-carbon cooperation under three different power structures: one led by the sports events materials supplier, one by the materials distributor, and one by the integrated service platform. Additionally, it designs related cost-sharing contracts. The findings suggest that: centralized decision-making is more conducive to aligning the interests of various entities within the sports events platform supply chain. Different power structures have distinct impacts on overall supply chain profits and carbon emissions. Specifically, the supply chain achieves the highest overall profit under the domination of the integrated service platform, while the lowest level of carbon reduction occurs under the domination of the materials distributor. These results provide strategic insights for the low-carbon development of sports events and the coordinated cooperation within platform supply chain.

Healthcare is considered one of the necessities for sustaining life. However, frequent emergencies raise the risk of supply chain disruption, seriously threatening people’s lives and health security. Therefore, building a resilient healthcare supply chain is an important initiative to manage the healthcare crisis effectively. Based on the secondary supply chain formed by medical supply manufacturers and retailers, this paper constructs an evolution game model of resilience investment decisions under the non-disruption and disruption symmetry scenarios of the supply chain and analyzes the stabilization strategies employed by both parties based on their asymmetry strategy choices. Subsequently, the numerical simulation is used to analyze the impact of various parameters on the evolutionary results and their evolutionary trends. The results of the study show that additional benefits from resilience investment, potential costs, disruption losses, market encroachment revenue, “free-rider” benefits, additional benefit increase coefficient, resilience investment reduction coefficient, disruption loss reduction coefficient, additional unit cost reduction coefficient, and market encroachment revenue coefficient all influence the resilience investment decisions. Finally, based on the simulation results, specific recommendations are formulated to improve the resilience of the healthcare supply chain.

In the complex and information-opaque modern food supply chain, establishing a traceability system is a key strategy for ensuring food safety and rebuilding consumer trust. However, whether the traceability information constructed with upstream investment can be effectively transmitted to the terminal to influence consumers’ purchase decisions remains a focus of academic and industrial attention. Based on the Stimulus-Organism-Response (S-O-R) theory, this study, from the terminal perspective of the food supply chain, constructs a mediation model with “cognition level—trust—purchase intention” as the core, aiming to analyze the impact path of agricultural product traceability as a quality signal on consumer psychology and behavior. Taking 380 consumers in Guilin, China—a city characterized by a dual consumer structure of “local residents + tourists”—as the survey subjects, this study conducts an empirical analysis and finds that consumers’ cognitive level of traceable agricultural products not only directly and significantly positively affects their purchase intention but also indirectly promotes purchase decisions by enhancing trust, meaning trust plays a key partial mediating role. This study reveals the transmission process through which traceability information in the supply chain is converted into purchasing behavior via consumer psychological mechanisms, providing an important theoretical basis and practical insights for supply chain managers to optimize information transmission strategies and for the government to build a collaborative governance system.