Evidence map›Paper›PMID 24003115›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

From extortion to generosity, evolution in the Iterated Prisoner's Dilemma.

Alexander J Stewart, Joshua B Plotkin

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
76.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

91 citing papers in PubMed, 303 citations in OpenAlex.

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  2. Payoff equivalence and complete strategy spaces of direct reciprocity.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  8. Unilateral incentive alignment in two-agent stochastic games.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  9. Evolving general cooperation with a Bayesian theory of mind.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  13. Repeated games with partner choice.PLoS computational biology · 2025
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  14. Conditional cooperation with longer memory.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  15. Evolution of reciprocity with limited payoff memory.Proceedings. Biological sciences · 2024
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  16. The distorting effects of producer strategies: Why engagement does not reveal consumer preferences for misinformation.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  18. Resolving social dilemmas with minimal reward transfer.Autonomous agents and multi-agent systems · 2024
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  19. Emotions and courtship help bonded pairs cooperate, but emotional agents are vulnerable to deceit.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  20. A geometric process of evolutionary game dynamics.Journal of the Royal Society, Interface · 2023
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31 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Alexander J StewartDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104.
Joshua B Plotkin
University of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent work has revealed a new class of "zero-determinant" (ZD) strategies for iterated, two-player games. ZD strategies allow a player to unilaterally enforce a linear relationship between her score and her opponent's score, and thus to achieve an unusual degree of control over both players' long-term payoffs. Although originally conceived in the context of classical two-player game theory, ZD strategies also have consequences in evolving populations of players. Here, we explore the evolutionary prospects for ZD strategies in the Iterated Prisoner's Dilemma (IPD). Several recent studies have focused on the evolution of "extortion strategies," a subset of ZD strategies, and have found them to be unsuccessful in populations. Nevertheless, we identify a different subset of ZD strategies, called "generous ZD strategies," that forgive defecting opponents but nonetheless dominate in evolving populations. For all but the smallest population sizes, generous ZD strategies are not only robust to being replaced by other strategies but can selectively replace any noncooperative ZD strategy. Generous strategies can be generalized beyond the space of ZD strategies, and they remain robust to invasion. When evolution occurs on the full set of all IPD strategies, selection disproportionately favors these generous strategies. In some regimes, generous strategies outperform even the most successful of the well-known IPD strategies, including win-stay-lose-shift.

Indexed as

AltruismBiological EvolutionCooperative BehaviorGame TheoryModels, PsychologicalComputer SimulationHumansaltruismevolutionary stabilityevolution of cooperationnash

Identifiers

PMID24003115
PMCPMC3780848
OpenAlexW2021825464

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.