Frontmatter -- Contents -- Abbreviations -- Acknowledgments -- List of authors -- Part I: The Leipzig Valency Classes Project: Introducing the Framework -- 1. Introduction -- 2. Leipzig Questionnaire on valency classes -- 3. Comparing verbal valency across languages -- 4. Valency classes and alternations: parameters of variation -- 5. Transitivity prominence -- 5a. Assessing transitivity prominence from a statistical perspective: A commentary on Martin Haspelmath's "Transitivity prominence" -- 6. Statistical observations on implicational (verb) hierarchies -- Part II: Case Studies -- Africa -- 7. Valency in Nllng -- 8. Valency properties of Mandinka verbs -- 9. Emai valency classes and their alternations -- 10. Valency classes in Yorùbá -- 11. Valency properties of verbs in Modern Standard Arabic -- Eurasia -- 12. Icelandic valency classes: oblique subjects, oblique ambitransitives and the actional passive -- 13. Valency patterns in Italian -- 14. Valency classes in Eastern Armenian -- 15. Valency and valency classes in Bezhta -- 16. Valency classes in Even (North Tungusic) in a comparative Tungusic perspective -- 17. Valency properties of the Ket verb clause -- 18. Flexible valency in Chintang -- 19. Valency classes in Mandarin -- 20. Valency classes in Japanese -- 21. Valency classes in Ainu -- Language index -- Subject index