Editorship of journals

• Theoretical Linguistics. An open peer review journal. Mouton de Gruyter, Berlin. Editor-in-Chief since 2002.
• Linguistics & Philosophy. Kluwer Academic Publishers. (Editorial Board since 1994, Editor-in-Chief 1997 - 2003)
• Semantics and Pragmatics. (Editorial Board since 2008)
• Linguistische Berichte (Editorial Board 1988 - 2004)
• Eoneo, Quarterly Journal of the Linguistic Society of Korea (Editorial Board since 2003)
• Journal of Semantics (Editorial Board, 1994; Asscociate Editor, 1995 - 1997)
• Language (Associate Editor, 1993-1995).
• Syntax. A Journal of Theoretical, Experimental and Interdisciplinary Research. (Editorial Board, 1998 -)

Editorship of book series

• Studia Grammatica, Berlin: Akademie-Verlag (editor, with Manfred Bierwisch, since 2008)
• Explorations in Semantics. (Member of editorial board since 2002).
• Current Issues in Linguistic Theory, John Benjamins (Editorial advisory board 1999 -)
• Syntax and Semantics, Academic Press (Editorial Board 1997 - 2000)
• Current Research in the Semantics/Pragmatics Interface (CRiSPi), Elsevier Science (Editorial Board 1997 -)

Books edited

• (with Renate Musan) The Expression of Information Structure The Expression of Cognitive Categories ECC 5. Berlin: Mouton de Gruyter. 2012. 468pp.
• (with Patrick Steinkrüger) On Inflection. Trends in Linguistics 184. Berlin: Mouton de Gruyter. 2009. 272pp.
• Genericity in Natural Language. Proceedings of the 1988 Tuebingen Conference. University of Tuebingen, SNS-Bericht 88-42. 429 pages.