공급업체의 매출원가율과 계열사 여부가 친환경 활동에 미치는 영향

[Purpose] This study aims to empirically analyze the relationship between COGS ratio and environmental activities of manufacturing suppliers, focusing on the impact of affiliation status. [Methodology] This study analyzed data from the ‘2022 Korea Innovation Survey：Manufacturing Sector’ by STEPI and the Value－Search financial database, using a final sample of 1,187 firms. A negative binomial regression was applied to examine environmental activity levels. The supplier’s COGS ratio was the independent variable, with affiliation status as a moderator to explore interaction effects. [Findings] The analysis showed a negative link between suppliers’ COGS ratio and environmental activities, with a 10% increase in the COGS ratio reducing the likelihood of such activities by 24.6%. However, for affiliated group suppliers, a 10% rise in the COGS ratio increased the likelihood of engaging in environmental activities by 19.8%. Similar trends were observed for variables emphasizing firm－ and user－oriented environmental benefits. [Policy Implications] The findings reveal that product margins and affiliation status significantly influence manufacturing suppliers’ environmental responsiveness. This study highlights the distinct strategies of individual and affiliated firms in environmental policies, contributing to the limited research on suppliers’ roles in sustainability.