Externality_tullock_k30 Externality_tullock_k70 Externality_tullock_k450 Externality_all_pay_k30 Externality_all_pay_k70 Externality_all_pay_k450 fight_and_flee_c0 fight_and_flee_c5 fight_and_flee_c20 fight_and_flee_c40 N_auction_28 tullock_contest_mgsc406 tullock_contest_twoprizes_mgsc406 public_goods_simple