Here are some articles that are currently being studied by the members of COCA.

• M.F. Balcan, A. Blum and Y. Mansour. Improved Equilibria via Public Service Advertising. In Proceedings of SODA 2008. http://www.cc.gatech.edu/~ninamf/papers/bbm08-soda.pdf
• G. Hines and K. Larson. Insuring Risk-Averse Agents. In Proceedings of ADT 2009. http://www.cs.uwaterloo.ca/~ggdhines/ma_insurance.pdf
• A.D. Procacia and M. Tennenholtz. Approximate Mechanism Design Without Money. In EC-09. http://people.seas.harvard.edu/~arielpro/papers/facility.pdf
• P. Lu, Y. Wang et Y. Zhou. Tighter bounds for facility games. Proc. of the 5th International Workshop of Internet and Network Economics (WINE’09), 137-148, 2009. http://research.microsoft.com/pubs/101338/facility_allocation.pdf
• P. Lu, X. Sun, Y. Wang et Z.A. Zhu. Asymptotically Optimal Strategy-Proof Mechanisms for Two-Facility Games. 11th ACM Conference on Electronic Commerce (EC’11), 315-324, 2010. http://research.microsoft.com/pubs/121934/ec22-lu.pdf