Farmers' cooperation preference for solar composting chamber —— From farmers' multi-dimensional heterogeneity perspective.

Solar composting chamber is an important way for disposing rural domestic waste locally, which requires the participation of farmers. However, few studies have explored farmers' cooperation preference for solar composting chamber, even without considering farmers' heterogeneity. Therefore, this paper divides the farmers into three types: economic, social, and cognitive dominant. The Choice Experiment method is used to investigate all types of farmers' cooperation preference and willingness to accept subsides for the solar composting chamber, using the survey data of China's Shaanxi province. The findings show that social-dominant farmers favor supply models that incorporate government subsidies, more participating farmers, and technical support, while economic-dominant farmers prefer models that include closer construction distances in addition to those. In contrast, cognitive-dominant farmers prefer models with more withdrawal flexibility in addition to the aforementioned factors. Furthermore, economic-dominant farmers have the lowest value of willingness to accept subsidies, i.e., 10,923 dollars, while cognitive-dominant farmers have the highest, i.e., 22,197 dollars. According to the results, policy implications are suggested, including incentivizing farmers' participation by enhancing government subsidies and technical support, and developing diverse cooperation models. • Farmers play an important role in supply of solar composting chamber. • The farmers are categorized into economic, social, and cognitive types. • Choice experimental is used to measure all types of farmers' cooperation preference. • The farmers' willingness to accept subsidies are calculated. • Supply model with subsidies, participants and technical support are most favored. [ABSTRACT FROM AUTHOR]