The Evolution of Cooperation¶
Axelrod, R. (1984). The Evolution of Cooperation. Basic Books.
Cited by¶
13 citations across 13 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Bottom-Up Perspectives
This sourceIterated Prisoner's Dilemma tournaments won by Rapoport's Tit-for-Tat; nice/retaliatory/forgiving/clear properties of robust cooperative strategies.
- Cooperation
- Axelrod's (1984) computational tournaments showed that this stabilizing mechanism need not be moral sentiment or central authority; it can emerge from the structure of repeated interaction itself.
This sourceIterated-Prisoner's-Dilemma tournaments in which Rapoport's Tit-for-Tat won both rounds; articulates the nice/retaliatory/forgiving/clear properties of robust cooperative strategies and shows reciprocity from repeated interaction can stabilize cooperation without authority or moral sentiment.
- Axelrod's (1984) computational tournaments showed that this stabilizing mechanism need not be moral sentiment or central authority; it can emerge from the structure of repeated interaction itself.
- False Dilemma
- Interpersonal reasoning — "either he loves me or he doesn't," collapsing graded, time-varying, ambivalent states into a binary. Game theory and strategy — treating an interaction as zero-sum when it contains cooperative surplus, or as one-shot when it is iterated.
This sourceShows via iterated-prisoner's-dilemma tournaments that interactions presumed zero-sum or one-shot often contain cooperative surplus once iteration is recognized, supporting the game-theory use.
- Interpersonal reasoning — "either he loves me or he doesn't," collapsing graded, time-varying, ambivalent states into a binary. Game theory and strategy — treating an interaction as zero-sum when it contains cooperative surplus, or as one-shot when it is iterated.
- Free Riding
- A prisoner's-dilemma defector might cooperate again after retaliation, as Axelrod (1984) shows in his analysis of tit-for-tat reciprocity; a free-rider may never face consequences for non-contribution.
This sourceIterated Prisoner's Dilemma tournaments won by Rapoport's Tit-for-Tat; articulates nice/retaliatory/forgiving/clear strategies.
- A prisoner's-dilemma defector might cooperate again after retaliation, as Axelrod (1984) shows in his analysis of tit-for-tat reciprocity; a free-rider may never face consequences for non-contribution.
- Game-Theoretic Strategy
- … strategies, Tit-for-Tat, grim-trigger); information = full or imperfect history of past play; solution concept = subgame-perfect equilibrium with folk theorems characterising the sustainable payoff set; key implication = cooperation can be sustained when discount factors are high and detection of deviation is reliable
This sourceThe book articulates the four properties (nice, retaliatory, forgiving, clear) of robust cooperative strategies and has shaped the cooperation-evolution literature in biology, political science, and management science. Axelrod's tournament remains a foundational case study in repeated-game analysis and the evolutionary persistence of cooperative norms.)
- … strategies, Tit-for-Tat, grim-trigger); information = full or imperfect history of past play; solution concept = subgame-perfect equilibrium with folk theorems characterising the sustainable payoff set; key implication = cooperation can be sustained when discount factors are high and detection of deviation is reliable
- Non-Zero-Sum Game
- The intervention surface reads off the structure: to capture the available surplus ($2R - 2P$), find a coordination mechanism that changes the effective payoffs — repetition (folk theorem), binding contracts, reputation, or a property right — so cooperation becomes individually rational.
This sourceDemonstrates via the folk theorem and tournament results how repetition, reputation, and reciprocity make cooperation individually rational and capture the available surplus in iterated non-zero-sum games.
- The intervention surface reads off the structure: to capture the available surplus ($2R - 2P$), find a coordination mechanism that changes the effective payoffs — repetition (folk theorem), binding contracts, reputation, or a property right — so cooperation becomes individually rational.
- Reciprocity
This sourceThe book articulates the four properties (nice, retaliatory, forgiving, clear) of robust cooperative strategies and has shaped the cooperation-evolution literature in biology, political science, and management science. Axelrod's tournament remains a foundational case study in repeated-game analysis and the evolutionary persistence of cooperative norms.)
- Shadow Of The Future
- In game theory and economics, folk theorems prove that sufficiently patient players can sustain cooperative outcomes as equilibria even when defection is the unique one-shot equilibrium, and reputation and relational-contracting models operationalize the same lever.
This sourceShows how an indefinite, observable repeated Prisoner's Dilemma sustains cooperation (tit-for-tat), introduces 'the shadow of the future,' and derives the discount-factor threshold for cooperation to be self-interested.
- In game theory and economics, folk theorems prove that sufficiently patient players can sustain cooperative outcomes as equilibria even when defection is the unique one-shot equilibrium, and reputation and relational-contracting models operationalize the same lever.
Mechanisms¶
- Partner Continuity Assignment
- The lengthened horizon is what Axelrod called the shadow of the future: cooperation becomes rational only when the same parties expect enough further rounds together.
This sourceExplains that stable reciprocity depends on a sufficiently large ‘shadow of the future’—a sufficiently important prospect of another encounter between the same parties.
- The lengthened horizon is what Axelrod called the shadow of the future: cooperation becomes rational only when the same parties expect enough further rounds together.
- Post-Exit Non-Retaliation Commitment
- It leans on the logic of the shadow of the future
This sourceCooperation can remain stable under a sufficiently long shadow of the future when defection is observable and can be answered through reciprocity.
- It leans on the logic of the shadow of the future
- Reputation System
- The whole thing runs on the shadow of the future
This sourceShows how anticipated future interaction sustains reciprocity and reputational discipline in repeated encounters.
- The whole thing runs on the shadow of the future
- Tit-for-Tat Matching Rule
- In Robert Axelrod's repeated-game tournaments, this plain strategy outperformed far more elaborate ones precisely because it was nice, provocable, forgiving, and clear, and it did so without ever "winning" any single exchange.
This sourceReports that Tit for Tat won Axelrod's repeated Prisoner's Dilemma tournaments through a strategy that was nice, provocable, forgiving, and clear, even though it could not outscore an opponent in a head-to-head exchange.
- In Robert Axelrod's repeated-game tournaments, this plain strategy outperformed far more elaborate ones precisely because it was nice, provocable, forgiving, and clear, and it did so without ever "winning" any single exchange.
Verification¶
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Links previously used in the corpus¶
Before the registry existed this work was also linked 4 other ways.
- https://search.worldcat.org/title/The-evolution-of-cooperation/oclc/10274775 ×3
- https://archive.org/details/evolutionofcoope0000axel ×1
- https://public.websites.umich.edu/~axe/CC/ECHome.html ×1
- https://www.worldcat.org/isbn/9780465021215 ×1
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