United States - Continued existence and application of zeroing methodology: The end of zeroing?

Thomas J. Prusa, Edwin Vermulst

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


This is the eighth Appellate Body Report in which some aspect of zeroing was adjudicated. As in the prior cases, the AB again found the US practice inconsistent with several aspects of the Anti-Dumping Agreement. The novelty in this dispute was the EC attempt to broaden the concept of what constitutes an appealable measure. The EC challenged whether a WTO decision regarding zeroing could apply to subsequent proceedings that might modify duty levels and asked the AB to decide whether the United States' continued use of zeroing in the context of a given case was consistent with WTO obligations. The AB stated that in its attempt to bring an effective resolution to the zeroing issue, the EC is entitled to frame the subject of its challenge in such a way as to bring the ongoing use of the zeroing methodology in these cases, under the scrutiny of WTO dispute settlement. The AB then cautiously applied the new perspective to US zeroing practice.

Original languageEnglish (US)
Pages (from-to)45-61
Number of pages17
JournalWorld Trade Review
Issue number1
StatePublished - Jan 2011

All Science Journal Classification (ASJC) codes

  • Economics and Econometrics
  • Political Science and International Relations
  • Law


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