“…Green innovation is characterized by technological complexity, high cost, and high risk (De Marchi, 2012), which requires more knowledge resources than traditional innovation (Martínez‐Ros & Kunapatarawong, 2019; Pacheco et al, 2018), especially the knowledge and skills of key technologies needed to eliminate environmental pollution (Liao & Tsai, 2019; Sahoo et al, 2022). However, due to the lack of internal knowledge resources, firms must search external knowledge to effectively explore green technologies (Du et al, 2018; Song et al, 2020).…”