Abstract
A polluted river network is populated with agents (e.g., firms, villages, municipalities, or countries) located upstream and downstream. This river network must be cleaned, the costs of which must be shared among the agents. We model this problem as a cost sharing problem on a tree network. Based on the two theories in international disputes, namely the Absolute Territorial Sovereignty (ATS) and the Unlimited Territorial Integrity (UTI), we propose three different cost sharing methods for the problem. They are the Local Responsibility Sharing (LRS), the Upstream Equal Sharing (UES), and the Downstream Equal Sharing (DES), respectively. The LRS and the UES generalize Ni and Wang (Games Econ Behav 60:176–186, 2007) but the DES is new. The DES is based on a new interpretation of the UTI. We provide axiomatic characterizations for the three methods. We also show that they coincide with the Shapley values of the three different games that can be defined for the problem. Moreover, we show that they are in the cores of the three games, respectively. Our methods can shed light on pollution abatement of a river network with multiple sovereignties.
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We thank the two anonymous referees and the associate editor Hassan Benchekroun for their very helpful comments and suggestions that improve greatly our paper. We are grateful to Meidan Sun for her assistance in Sect. 3.4 of the paper. Ni would like to acknowledge the financial support from the Key Project of the Natural Sciences Foundation (NSF) of China (Grant # 70932005), the Regular Project of the Natural Sciences Foundation (NSF) of China (Grant # 70702025), the Program for the New Century Excellent Talents in Universities (Grant # NCET-11-0064) as well as the UESTC funds for Junior Research Chairs. Wang would like to thank Peter Townley, Sang-Chul Suh, and Ronald Meng for the comments and suggestions. Wang’s research was supported by the SSHRC of Canada under grant # 410-2005-0620.
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Dong, B., Ni, D. & Wang, Y. Sharing a Polluted River Network. Environ Resource Econ 53, 367–387 (2012). https://doi.org/10.1007/s10640-012-9566-2
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DOI: https://doi.org/10.1007/s10640-012-9566-2