Under the background of the era of dual carbon strategy,it is of great significance to explore the spillover effect of low-carbon policy on family farm entrepreneurship for accelerating the revitalization of rural ecology.Based on the panel data of 286 cities at or above the prefecture level from 2005 to 2020,taking the low-carbon policy as a quasi natural experiment,this paper uses the gradual double difference method to explore the impact of low-carbon policy on the entrepreneurial level of family farms and its mechanism,and uses the propensity matching score,instrumental variables and other...