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Published online by Cambridge University Press: 24 September 2003
Econometric Theory is proud to announce the winning article for The Tjalling C. Koopmans Econometric Theory Prize for the period 2000–2002 inclusive. The winning article and citation (written by the Advisory Board) are as follows: Stefan Sperlich, Dag Tjøstheim, and Lijian Yang are awarded the Tjalling C. Koopmans Econometric Theory Prize for their paper Nonparametric Estimation and Testing of Interaction in Additive Models, which appeared in Econometric Theory 18(2), April 2002, pages 197–251