Implementing Environmental and Social Responsibility Programs in Supply Networks Through Multiunit Bilateral Negotiation

Qi Feng (), Chengzhang Li (), Mengshi Lu () and J. George Shanthikumar ()
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Qi Feng: Krannert School of Management, Purdue University, West Lafayette, Indiana 47907
Chengzhang Li: Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai 200030, China
Mengshi Lu: Krannert School of Management, Purdue University, West Lafayette, Indiana 47907
J. George Shanthikumar: Krannert School of Management, Purdue University, West Lafayette, Indiana 47907

Management Science, 2022, vol. 68, issue 4, 2579-2599

Abstract: Involving suppliers deep in the supply chain is critical for the success of environmental and social responsibility (ESR) initiatives. Administering ESR programs throughout a complex supply network, however, is challenging. In this paper, we apply a multiunit bilateral bargaining framework to coordinate ESR investments in a general supply network and analyze to what extent an ESR initiator should directly engage the higher-tier suppliers as opposed to delegating that responsibility to the first-tier suppliers. Our bargaining framework not only generalizes the conventional Shapley value approach by allowing the flexibility of modeling imbalanced power distribution among the firms but also provides an explicit way of implementing the resulting gain sharing among the firms through negotiated contract terms. We show that the eventual structure of ESR negotiation relationships can be derived by finding a shortest path tree in the supply network with the arc cost defined as the logarithm of the negotiating parties’ relative bargaining power. These developments allow us to analyze ESR implementation in generally extended supply networks. We find that the ESR initiator tends to delegate ESR negotiations to a supplier that is strong in negotiations with higher-tier suppliers. When the supply network is complex (i.e., wide and deep), directly engaging all suppliers can lead to a larger gain by the initiator than fully delegating the negotiations with higher-tier suppliers to the first-tier ones. However, as the network gets increasingly complex, the ESR initiator tends to directly engage a reduced percentage of higher-tier suppliers. We further extend our analysis to situations where the ESR relationships are sequentially formed in a decentralized manner, where the benefit of ESR depends on the collective choice of the firms’ investment levels, where multiple ESR programs are implemented in the network, and where ESR investments depend on the negotiation relationships.

Keywords: environmental and social responsibility; supply network; multiunit bilateral bargaining; Nash-Nash solution; shortest path tree (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (3)

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