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  2. Ramsey problem - Wikipedia

    en.wikipedia.org/wiki/Ramsey_problem

    The Ramsey problem, or Ramsey pricing, or Ramsey–Boiteux pricing, is a second-best policy problem concerning what prices a public monopoly should charge for the various products it sells in order to maximize social welfare (the sum of producer and consumer surplus) while earning enough revenue to cover its fixed costs.

  3. Ramsey's theorem - Wikipedia

    en.wikipedia.org/wiki/Ramsey's_theorem

    [a] Ramsey's theorem states that there exists a least positive integer R(r, s) for which every blue-red edge colouring of the complete graph on R(r, s) vertices contains a blue clique on r vertices or a red clique on s vertices. (Here R(r, s) signifies an integer that depends on both r and s.) Ramsey's theorem is a foundational result in ...

  4. Ramsey theory - Wikipedia

    en.wikipedia.org/wiki/Ramsey_theory

    Ramsey theory, named after the British mathematician and philosopher Frank P. Ramsey, is a branch of the mathematical field of combinatorics that focuses on the appearance of order in a substructure given a structure of a known size. Problems in Ramsey theory typically ask a question of the form: "how big must some structure be to guarantee ...

  5. Theorem on friends and strangers - Wikipedia

    en.wikipedia.org/wiki/Theorem_on_friends_and...

    In 1930, in a paper entitled 'On a Problem of Formal Logic,' Frank P. Ramsey proved a very general theorem (now known as Ramsey's theorem) of which this theorem is a simple case. This theorem of Ramsey forms the foundation of the area known as Ramsey theory in combinatorics.

  6. After 90 Years, Mathematicians Finally Solved the Most ...

    www.aol.com/lifestyle/90-years-mathematicians...

    Mathematicians can now explain how many people would need to be invited to a party so at least 4 people always know one another. It only took 90 years to solve.

  7. Optimal tax - Wikipedia

    en.wikipedia.org/wiki/Optimal_tax

    The problem is closely linked to the problem of socially optimal monopolistic pricing when profits are constrained to be positive, known as the Ramsey problem. He was the first to make a significant contribution to the theory of optimal taxation from an economic standpoint, and much of the literature that has followed reflects Ramsey's initial ...

  8. Dave Ramsey is notoriously anti-debt. On several episodes of his podcast, The Ramsey Show, the financial guru has encouraged his callers to avoid nearly all forms of non-housing consumer debt ...

  9. Dave Ramsey: How To Stop Focusing on the Wrong Money Problems

    www.aol.com/dave-ramsey-stop-focusing-wrong...

    Ramsey explained through the call that she is focusing on the wrong money problem. Her joint household income is $125,000 a year, which Dave explains allows her to self-insure her pets.