Costly Rewards Sustain Cooperation with Imperfect Monitoring

The authors are grateful to the department editor, Dorothea Kubler; the associate editor; and three anonymous referees for their constructive and insightful comments, which greatly improved this paper. The authors also thank Ben Greiner, Louis Putterman, Urs Fischbacher, Daniel Houser, and David Rand for their helpful feedback. The authors are especially grateful to Christian Thoeni for his invaluable support with programming the experiments and to Peikun Chen for excellent research assistance. The authors also thank Wenhua Wang, Ruqian Zang, Zenghui Liu, Qiuya Dong, Xiaobo Zhou, Xue Li, Yue Wang, and Yunjie Zhang for their valuable assistance. All authors contributed equally to this work.