1. Introduction R. M. W. Dixon and Alexandra Y. Aikhenvald; 2. A typology of causatives: Form, syntax and meaning R. M. W. Dixon; 3. Valency-changing derivation in Central Alaskan Yup'ik Marianne Mithun; 4. Transitivity and valency-changing derivations in Motuna Masayuki Onishi; 5. Transitivity in Tariana Alexandra Y. Aikhenvald; 6. Voice and valency in the Athapaskan family Keren Rice; 7. Valency-changing derivations in K'iche' Lyle Campbell; 8. Valency-changing derivations in Dulong/Rawang Randy J. LaPolla; 9. Valency-changing and valency-encoding devices in Amharic Mengistu Amberber; 10. Complex verb collocations in Ngan'gityemerri: a non-derivational strategy for encoding valency alternations Nicholas Reid; 11. Valency-changing derivations in Tsez Bernard Comrie; 12. Creek voice: Beyond valency Jack Martin.