Unilateral Emissions Abatement: An Experiment
According to the model of HOEL (1991), a unilateral emissions abatement of a global pollutant leads to lower aggregated emissions in a game with a simultaneous decision protocol. Our experiment tests the Hoel model and examines the question of whether a leader can induce additional abatement of followers in a game with a mixed sequential-simultaneous decision protocol. Using an environment with a unique interior equilibrium, our experiments confirm the stylized outcomes of previous public good experiments. Changes in abatement and profits for the simultaneous decision protocol are in line with the theoretical predictions of the Hoel model albeit not significantly in every case. In the treatments with a mixed sequential-simultaneous decision protocol, during the first periods an abatement near social optimum is mostly chosen by the leader. However, in most cases the leader failed to induce cooperation, i.e. there are few followers who react cooperatively to the leader’s signal. High efforts by the leader and the cooperative followers are exploited by the majority of defective followers.
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- Hoel, Michael, 1991.
"Global environmental problems: The effects of unilateral actions taken by one country,"
Journal of Environmental Economics and Management,
Elsevier, vol. 20(1), pages 55-70, January.
- Hoel, M., 1989. "Global Environmental Problems: The Effects Of Unilateral Actions Taken By One Country," Memorandum 11/1989, Oslo University, Department of Economics.
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- Jeannette Brosig & Axel Ockenfels & Joachim Weimann, 2002.
"The Effect of Communication Media on Cooperation,"
Papers on Strategic Interaction
2002-17, Max Planck Institute of Economics, Strategic Interaction Group.
- Werner Güth & M. Vittoria Levati & Matthias Sutter & Eline van der Heijden, 2004. "Leadership and cooperation in public goods experiments," Papers on Strategic Interaction 2004-29, Max Planck Institute of Economics, Strategic Interaction Group.
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