Epsilon Cores of Games with Limited Side Payments: Nonemptiness and Equal Treatment. - Alexander Kovalenkov; Myrna Holtz Wooders (Games Econ. Behav., 2001)

An Exact Bound on Epsilon for Nonemptiness of Epsilon Cores of Games. - Alexander Kovalenkov; Myrna Holtz Wooders (Math. Oper. Res., 2001)

Simple Strategy-Proof Approximately Walrasian Mechanisms. - Alexander Kovalenkov (J. Econ. Theory, 2002)

Approximate cores of games and economies with clubs. - Alexander Kovalenkov; Myrna Holtz Wooders (J. Econ. Theory, 2003)

Competitive rational expectations equilibria without apology. - Alexander Kovalenkov; Xavier Vives (J. Econ. Theory, 2014)