As the sustainable economy has become more of a consensus, supply chain members, both manufacturer (e.g., Apple, Huawei, Xiaomi, Nike, and P&G) and retailer (e.g., Uniqlo, Walmart, and Bravo), are concentrated on corporate social responsibility (CSR). The literature in this area has investigated the role of CSR, but the optimal preference for CSR concern of supply chain members is not well understood, especially when manufacturer sells directly by implementing encroachment. This paper studies the optimal preference for CSR concern of supply chain members with considering manufacturer encroachment. We develop the supply chain with a manufacturer (M) and a retailer (R), where the manufacturer sells products via a retail channel which in turn sells them to the final consumers. The manufacturer can also implement encroachment to meet consumers directly. Meanwhile, by considering the manufacturer or retailer may have CSR concern, we explore four scenarios using a game-theoretic framework. Several interesting findings are as follows. First, for the sake of profits, retailer CSR should be encouraged, which may achieve Pareto improvement under certain conditions. Notably, manufacturer encroachment may narrow the “win–win” situation. While for the sake of environmental protection and consumer well-being, manufacturer CSR should be encouraged. Second, manufacturer implementing encroachment may not be blind, because it may be worse for itself when retailer has CSR concern. Third, manufacturer CSR may aggravate the cannibalization effect of encroaching, while retailer CSR may relieve it.

中文翻译：

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供应链蚕食企业社会责任谁来承担？制造商或零售商

随着可持续经济越来越成为共识，供应链成员，无论是制造商（如苹果、华为、小米、耐克、宝洁）还是零售商（如优衣库、沃尔玛、Bravo），都开始关注企业社会责任（企业社会责任）。该领域的文献研究了企业社会责任的作用，但供应链成员对企业社会责任关注的最优偏好尚不清楚，特别是当制造商通过实施侵占直接销售时。本文研究了考虑制造商侵占的情况下供应链成员对企业社会责任关注的最优偏好。我们与制造商（M）和零售商（R）建立供应链，制造商通过零售渠道销售产品，零售渠道又将产品销售给最终消费者。制造商也可以实施侵占，直接与消费者见面。同时，考虑到制造商或零售商可能关心的企业社会责任，我们使用博弈论框架探讨了四种场景。以下是一些有趣的发现。首先，为了利润，应该鼓励零售商履行社会责任，这在一定条件下可以实现帕累托改进。值得注意的是，制造商的侵犯可能会缩小“双赢”的局面。而为了环境保护和消费者福祉，应鼓励制造商履行企业社会责任。其次，制造商实施侵犯可能不会盲目，因为当零售商关注企业社会责任时，这对自己来说可能更糟。第三，制造商的企业社会责任可能会加剧侵占的蚕食效应，而零售商的企业社会责任可能会减轻这种蚕食效应。