Objective:Drawing upon behavioral economics theory,it aims to elucidate the irrational decision-making mechanisms and systematic governance strategies driving low-value care in oncology,optimize healthcare resource allocation and enhance service quality.Methods:Centered on the dual-system theory framework,the behavioral economics principles of loss aversion,anchoring effects,and intertemporal choice are integrated to develop a physician-patient shared decision-making model spanning the entire cancer care continuum(screening,diagnosis,treatment,rehabilitation).Results:Low-value oncology care are jointly driven by physicians' defensive psychology,patients'loss aversion preferences,and socio-cultural pressures.Conclusion:Multidimensional interventions,such as predefining high-value care pathways,establishing negative lists to constrain low-value supply,reforming payment mechanisms,and implementing targeted health education,can effectively disrupt the"cognitivebias-behavioral inertia"loop and improve the efficiency of resource allocation in cancer diagnosis and treatment.

Objective:Drawing upon behavioral economics theory,it aims to elucidate the irrational decision-making mechanisms and systematic governance strategies driving low-value care in oncology,optimize healthcare resource allocation and enhance service quality.Methods:Centered on the dual-system theory framework,the behavioral economics principles of loss aversion,anchoring effects,and intertemporal choice are integrated to develop a physician-patient shared decision-making model spanning the entire cancer care continuum(screening,diagnosis,treatment,rehabilitation).Results:Low-value oncology care are jointly driven by physicians' defensive psychology,patients'loss aversion preferences,and socio-cultural pressures.Conclusion:Multidimensional interventions,such as predefining high-value care pathways,establishing negative lists to constrain low-value supply,reforming payment mechanisms,and implementing targeted health education,can effectively disrupt the"cognitivebias-behavioral inertia"loop and improve the efficiency of resource allocation in cancer diagnosis and treatment.