Canada - Certain Measures Concerning Periodicals [1997]
WT/DS31/AB/R · Appellate Body · World Trade Organization
World Trade Organization Lawworld-trade-organization-lawWorld Trade Organization LawNational treatment - like products
Issue
Whether Canada's measures violated GATT Article III:2 and III:4 by discriminating against imported periodicals.
Held
The tax violated Article III:2, and the postal subsidy was inconsistent with Article III:4.
Exam use
In an exam, introduce Canada - Certain Measures Concerning Periodicals with the citation only if you can remember it accurately; otherwise use the case name and court, then focus on the rule and application. A strong answer should say what Canada - Certain Measures Concerning Periodicals decided, why the facts mattered, and how the authority helps resolve the new facts. Avoid treating the case as a decorative reference. Use it to prove a doctrinal step in National treatment - like products, then move quickly to analysis.
Summary
Canada - Certain Measures Concerning Periodicals is included in the World Trade Organization Law case database because it gives students a concrete authority for National treatment - like products. The reported citation is WT/DS31/AB/R, and the decision is associated with Appellate Body. In revision, treat the case as a way to connect the legal issue to a real dispute rather than as an abstract rule. The key exam move is to state the holding, identify the fact pattern that made the rule matter, and then decide whether a new problem question should apply, distinguish, or limit the authority.
Facts
The material factual signal for Canada - Certain Measures Concerning Periodicals is: Canada imposed a tax on split-run editions of foreign magazines and a postal subsidy for domestic periodicals. Students should read the linked source and turn that signal into a short fact table: parties, transaction or public-law setting, procedural posture, conduct in dispute, and the fact the court treated as decisive. This prevents vague case-dropping. In an answer on World Trade Organization Law, use the facts to explain why National treatment - like products was live, then compare the problem facts against the facts in the case before stating any conclusion.
Procedural History
Canada - Certain Measures Concerning Periodicals is reported as a decision of Appellate Body. The procedural route should be checked against the linked source before formal citation. For study notes, record whether the decision was an appeal, judicial review, trial judgment, tribunal ruling, or constitutional/application proceeding, because that posture affects how confidently the rule can be used.
Issue
Whether Canada's measures violated GATT Article III:2 and III:4 by discriminating against imported periodicals.
Held
The tax violated Article III:2, and the postal subsidy was inconsistent with Article III:4.
Ratio Decidendi
Like products are determined by competitive relationship; even if products are not directly competitive, discriminatory taxation may violate national treatment.
Obiter Dicta
Check the linked source for concurring, dissenting, or obiter observations before quoting this case. If the case includes non-binding reasoning, use it as persuasive support rather than as the core rule.
Reasoning
For reasoning, start with the ratio: Like products are determined by competitive relationship; even if products are not directly competitive, discriminatory taxation may violate national treatment. Then read the source and separate three things: the legal test, the facts used to apply that test, and any policy or institutional reason the court gave. This structure makes Canada - Certain Measures Concerning Periodicals easier to use in essays and problem questions. In World Trade Organization Law, the case should be compared with related authorities on National treatment - like products; if the jurisdiction, statute, or procedural posture differs from the exam problem, explain that limit explicitly instead of treating the authority as automatic.
Plain-English Explanation
Plainly, Canada - Certain Measures Concerning Periodicals is a case to use when a World Trade Organization Law answer needs an authority on National treatment - like products. Do not just list it. Explain the problem the court had to solve, the rule or holding it used, and the fact that made the result persuasive. That turns the case from a memorised name into evidence for your legal analysis.
Essay-Ready Explanation Generator
Version 1 of 4
Reference to Canada - Certain Measures Concerning Periodicals (WT/DS31/AB/R) strengthens a World Trade Organization Law answer because the case reflects the principle that Like products are determined by competitive relationship; even if products are not directly competitive, discriminatory taxation may violate national treatment. Applied to a problem question, the case should be used after identifying the issue as Whether Canada's measures violated GATT Article III:2 and III:4 by discriminating against imported periodicals. The stronger essay move is to connect the material facts to the court's holding, then explain whether the present facts support the same conclusion or justify distinguishing the authority.
Underlying Concepts
world-trade-organization-law
World Trade Organization Law
National treatment - like products
case authority
exam application
Key Passages
Verify exact wording in the linked source before quoting.
Significance
Canada - Certain Measures Concerning Periodicals is significant for LawConquer users because it supplies a named authority for National treatment - like products in World Trade Organization Law. The case can anchor a paragraph, support a rule statement, or provide a contrast point when another authority points the other way. Its practical value is strongest when the student links the holding to the material facts and then explains whether the present problem is analogous or distinguishable.
Related Cases
No related cases listed.
Exam Tips
In an exam, introduce Canada - Certain Measures Concerning Periodicals with the citation only if you can remember it accurately; otherwise use the case name and court, then focus on the rule and application. A strong answer should say what Canada - Certain Measures Concerning Periodicals decided, why the facts mattered, and how the authority helps resolve the new facts. Avoid treating the case as a decorative reference. Use it to prove a doctrinal step in National treatment - like products, then move quickly to analysis.
Revision Checklist
Name the issue before discussing facts so the marker sees the legal question immediately.
State the holding in one sentence, then use the ratio to explain why the court reached that result.
Use the citation and jurisdiction to show why this authority matters for the problem you are answering.
Pair this case with one supporting or contrasting authority if the question tests limits, policy, or exceptions.
Problem Question Use
Use Canada - Certain Measures Concerning Periodicals in a problem question by matching the factual trigger to the new scenario. If the fact pattern aligns with Canada imposed a tax on split-run editions of foreign magazines and a postal subsidy for domestic periodicals., apply the ratio and explain the likely result. If a crucial fact, jurisdiction, statute, or procedural posture differs, distinguish the case and use it as a boundary rather than a controlling answer.