“…Currently, an advanced approach in the study of differentiated subsidies is to develop subsidy strategies based on consumer preferences, which has been validated for different industries (Han et al ., 2023; Zhao et al ., 2023). The preferences of consumers are heterogeneous (Paul and Green, 1978; Feng et al ., 2022b), which leads to variations in consumer willingness and significantly influences consumer behavior (Kaya et al ., 2020a; Wang et al ., 2023a). For example, in the healthcare industry, consumer preferences regarding wait times can affect the choice of healthcare providers.…”