“…Existing literature has studied farmers' adoption of straw return technology from many aspects, such as householder age, gender, education (Ndiritu et al, 2014;Wu and Babcock, 1998), time preference (Mao et al, 2021), technical cognition (Lu et al, 2020), technology subsidies (Kurkalova et al, 2006), media channels and social interaction (Jiang et al, 2021), stability of land tenure (Gao et al, 2018), technical information (Hou et al, 2019), environmental cognition (Sattler and Nagel, 2010), and farm scale (Wu et al, 2018). Some studies have also confirmed that risk preferences are a key factor affecting farmers' adoption of agricultural production technology (Alpizar et al, 2011;Haile et al, 2020). However, few studies have analyzed risk preferences and farmers' adoption of straw return technology from the perspective of productive investment, i.e., whether they invest in new production technology or assets (tractors, in this paper).…”