Drawing on Grossman's health demand theory,this paper utilizes provincial panel data from 2007 to 2020 to study the impact of government health investment through both"supply-side supplementation"and"demand-side supplementation",as well as their combination,on urban-rural health equity.This addresses the question of what type of health investment promotes urban-rural health equity.The findings are as follows:First,overall,during the study period,either mode of investment alone,whether supply-side or demand-side,negatively affects urban-rural health equity,requiring a certain degree of coordination between the two to be beneficial.Second,specifically,supply-side supplementation reduces equity in health services and health investments,while demand-side supplementation improves health status equity but reduces health investment equity.Third,in terms of their combination,a ratio of supply-side to demand-side supplementation lower than 0.6586 significantly enhances urban-rural health equity.Fourth,the degree to which government investment methods affect urban-rural health equity is contingent on specific conditions:In regions with higher per capita GDP or where the healthcare market is characterized by low supply and high demand,the adverse impact of supply-side supplementation on urban-rural health equity diminishes,while the adverse impact of demand-side supplementation intensifies.Based on these findings,policy recommendations are proposed to transform and optimize government health investments to promote urban-rural health equity.
government health investmenturban-rural health equitysupply-side supplemen-tationdemand-side supplementation