Worked demonstrations

• Assignment Against a Non-Assignment Clause

  The contract forbids assignment, and the creditor assigns all the same. Whether that works turns on one thing — what kind of right it is — and whether the debtor is safe turns on another: who told it, and with what proof.

  UNIDROIT Principles 2016 · articles 9.1.7–9.1.12 · 2 scenes · 8 registered cases · 20 answers
• Battle of Forms: What Survives?

  Buyer and seller each sent their own printed form, and the forms disagree. The Principles settle this by a rule, not by a reading: the contract stands on what the forms share, and what differs knocks itself out. Change one fact and see what is left of the contract.

  UNIDROIT Principles 2016 · articles 2.1.19–2.1.22 · 2 scenes · 7 registered cases · 19 answers
• Defects of Consent: One Ground at a Time

  One agreement, one defect at a time. A mistake stays a mistake even when the party cannot avoid for it; fraud knows no negligence threshold; and a confirmation after the ground became known ends the matter whatever the ground was.

  UNIDROIT Principles 2016 · chapter 3 · 2 scenes · 11 registered cases · 30 answers
• Limitation: Dates and Effects

  Two dates go in, and the periods come out to the day — including the day the text itself fixes: a period begins on the day after. Then see what expiry does, and what it does not do until someone asserts it.

  UNIDROIT Principles 2016 · chapter 10 · 2 scenes · 6 registered cases · 30 answers
• Same Facts, Two Instruments

  One sales contract, answered twice: by the Vienna Convention and by the UNIDROIT Principles. Where the Convention is silent, the Principles answer — but only if the case chooses to read article 7(2) that way. Flip the switch and watch which answers appear, and why.

  CISG 1980 · UNIDROIT Principles 2016 · 4 scenes · 17 registered cases · 87 answers