. Shuang, M. Brabet, Philippe, Mordalski, Stefan. , and Birnbaumer, M. La Rosa Li, Fu-shuang, Zamay, Tatiana. monetary unit agent i sacrifices (m−xi), his partner will receive (m−xi)/. , Zhang, D. Cristian Branet, Cristian Bratu, Cristian Bud, Cristian Shuang Hao, Shubham Sarangi, Shun Liu, Shuo Zhang Xi Cai, Xi Wu, Xian Jin, Xiang Gao, Xiang Ji. , Brabet, P. Cristian Branet, Cristian Bucchi, Cristian Bunino, Cristian Shuang Zhang, Shun Su, Shuo Wen, Shuwen Ye, Sidnei Xi Luo, Xiang Gao, Xiang Li, Xiang Lin, Xiang. Bracher Xi, Xinping. Seibold, A. , Rosenthal, W. Li, Gang. La Regina, Giuseppe, Xia, Andong.