Prisoner's Dilemma
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enDoes it pay to be nice? – the maths of altruism part i
https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-i
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Rachel Thomas </div>
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<p>Does it pay to be nice? Yes, it does. And we're not just talking about that warm fuzzy feeling inside, it pays in evolutionary terms of genetic success too. We talk to Martin Nowak about how the mathematics of evolution prove that being nice is unavoidable.</p>
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Does it pay to be nice? Yes, it does. And we're not just talking about that warm fuzzy feeling inside, it pays in evolutionary terms of genetic success too. In fact being nice is unavoidable; humans, or any population of interacting individuals (including animals, insects, cells and even molecules) will inevitably cooperate with each other.
</p><p><a href="https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-i" target="_blank">read more</a></p>https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-i#commentsmathematical realityaltruismcooperationevolutionary game theorygame theoryIterated Prisoners' DilemmaPrisoner's DilemmaTue, 24 Apr 2012 08:00:44 +0000Rachel5684 at https://plus.maths.org/contentDoes it pay to be nice? – the maths of altruism part ii
https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-ii
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Rachel Thomas </div>
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<p>It does pay to be nice if you repeatedly deal with the same person. Martin Nowak explains why cooperation also wins in matters of reputation, neighbourliness and family. But can evolutionary game theory save the world?</p>
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As we saw in the <a href="https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-i">previous article</a>, we can use evolutionary game theory to show that it does pay to be nice when you repeatedly deal with the same person. Martin Nowak, from the <a href="http://www.ped.fas.harvard.edu/">Program for Evolutionary Dynamics</a> at Harvard University, explored many other types of games using this mathematics, and the evolution of cooperation seemed to be inevitable in all of them.</em></p><p><a href="https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-ii" target="_blank">read more</a></p>https://plus.maths.org/content/does-it-pay-be-nice-maths-altruism-part-ii#commentsmathematical realityaltruismcooperationevolutionary game theorygame theoryIterated Prisoners' DilemmaPrisoner's DilemmaMon, 23 Apr 2012 08:22:22 +0000Rachel5687 at https://plus.maths.org/contentMathematical mysteries: Survival of the nicest?
https://plus.maths.org/content/mathematical-mysteries-survival-nicest
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Helen Joyce </div>
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<p>One of the most puzzling aspects of human behaviour is cooperation, in situations where backstabbing and selfishness would seem to be more rewarding. From the point of view of evolutionary theory, the very existence of altruism and cooperation appear mysterious.</p>
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<div class="pub_date">Mar 2002</div>
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<h2>Survival of the nicest?</h2>
One of the most puzzling aspects of human behaviour is cooperation, in situations where backstabbing and selfishness would seem to be more rewarding. From the point of view of evolutionary theory, the very existence of altruism and cooperation appear mysterious. The mechanics of evolution seem to imply that rugged competition is the order of the day; that, given an opportunity to benefit by
cheating someone, or by defaulting on a deal, we will inevitably do so.<p><a href="https://plus.maths.org/content/mathematical-mysteries-survival-nicest" target="_blank">read more</a></p>https://plus.maths.org/content/mathematical-mysteries-survival-nicest#comments19altruismcooperationevolutiongame theoryIterated Prisoners' DilemmaMathematical mysteriesPrisoner's DilemmaTit for TatTit for Tat with forgivenessSat, 01 Dec 2001 00:00:00 +0000plusadmin4755 at https://plus.maths.org/contentMaths in a minute: The prisoner's dilemma
https://plus.maths.org/content/prisoners-dilemma-0
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<p> Suppose you and a friend have been arrested for a crime and you're
being interviewed separately. The police offer each of you the same
deal. You can either confess, incriminating your partner, or remain
silent. If you confess and your partner doesn't, then you get 2
years in jail (as a reward for talking), while your partner gets 10 years.<p><a href="https://plus.maths.org/content/prisoners-dilemma-0" target="_blank">read more</a></p>https://plus.maths.org/content/prisoners-dilemma-0#commentsgame theoryMaths in a minutePrisoner's DilemmaFri, 08 Jul 2011 09:42:52 +0000mf3445517 at https://plus.maths.org/contentLeaving the markets
https://plus.maths.org/content/leaving-markets
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The 2009 Nobel Prize in Economics goes to two unusual economists </div>
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<div class="pub_date">22/10/2009</div>
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<p>The idea that economics is all about the markets has been challenged by this year's award of the <a href="http://nobelprize.org/nobel_prizes/economics/laureates/2009/index.html">Nobel Prize in Economics</a>.<p><a href="https://plus.maths.org/content/leaving-markets" target="_blank">read more</a></p>https://plus.maths.org/content/leaving-markets#commentseconomicsgame theoryNobel prizePrisoner's DilemmaWed, 21 Oct 2009 23:00:00 +0000plusadmin2829 at https://plus.maths.org/contentAdam Smith and the invisible hand
https://plus.maths.org/content/adam-smith-and-invisible-hand
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Helen Joyce </div>
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Adam Smith is often thought of as the father of modern economics. In his book "An Inquiry into the Nature and Causes of the Wealth of Nations" Smith decribed the "invisible hand" mechanism by which he felt economic society operated. Modern game theory has much to add to Smith's description. </div>
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<div class="pub_date">March 2001</div>
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<blockquote><i>...every individual necessarily labours to render the annual revenue of the society as great as he can. He generally, indeed, neither intends to promote the public interest, nor knows how much he is promoting it.<p><a href="https://plus.maths.org/content/adam-smith-and-invisible-hand" target="_blank">read more</a></p>https://plus.maths.org/content/adam-smith-and-invisible-hand#comments14Adam SmithArrow's theoremfree marketgame theoryinvisible handPrisoner's Dilemmasocial choiceThu, 01 Mar 2001 00:00:00 +0000plusadmin2182 at https://plus.maths.org/content