Lesson plan

Fink protocol

The Fink protocol (also known as Successive Pairs or Lone Chooser ) is a protocol for proportional division of a cake. Its main advantage is that it can work in an online fashion, without knowing the number of partners in advance. When a new partner joins the party, the existing division is adjusted to give a fair share to the newcomer, with minimal effect on existing partners. Its main disadvantage is that, instead of giving each partner a single connected piece, it gives each partner a large number of "crumbs".

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Article summary

The Fink protocol (also known as Successive Pairs or Lone Chooser ) is a protocol for proportional division of a cake. Its main advantage is that it can work in an online fashion, without knowing the number of partners in advance. When a new partner joins the party, the existing division is adjusted to give a fair share to the newcomer, with minimal effect on existing partners. Its main disadvantage is that, instead of giving each partner a single connected piece, it gives each partner a large number of "crumbs".

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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