The Tjalling C. Koopmans Econometric Theory Prize is named in honor of Tjalling C. Koopmans, the 1975 Nobel Laureate in economic science, whose contributions to the development of econometrics are of fundamental and lasting importance to the subject. The prize is awarded once every three years for the best article reporting original research published in the Journal Econometric Theory over that period. The selection of the winning article is made by the Advisory Board of the Journal and the criteria for selection is based on Tjalling Koopmans’ own research which is universally admired for its rigor, clarity and originality. All articles published in Econometric Theory are candidates for the prize except those that are authored or co-authored by the Editor and members of the Advisory Board.

The prize is accompanied by a financial award of $1,000. It is supported by the publishers, Cambridge University Press, and Mrs. Truus Koopmans.

Cambridge University Press joins me in congratulating the authors on their success in receiving this award.