Evidence map›Paper›PMID 27161141›Full record

ArticleScientific reports2016

Comparing reactive and memory-one strategies of direct reciprocity.

Seung Ki Baek, Hyeong-Chai Jeong, Christian Hilbe, Martin A Nowak

Abstract readComparative Study
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

24 citing papers in PubMed.

  1. The dynamics of cooperation in asymmetric public goods games.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Conditional cooperation with longer memory.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  4. Article
  5. Evolution of reciprocity with limited payoff memory.Proceedings. Biological sciences · 2024
    Article
  6. Efficiency and resilience of cooperation in asymmetric social dilemmas.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. A geometric process of evolutionary game dynamics.Journal of the Royal Society, Interface · 2023
    Article
  9. Article
  10. Mutation enhances cooperation in direct reciprocity.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  19. Evolving cooperation in multichannel games.Nature communications · 2020
    Article
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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

4 authors.

Seung Ki BaekDepartment of Physics, Pukyong National University, Busan 48513, Korea.
Hyeong-Chai JeongDepartment of Physics and Astronomy, Sejong University, Seoul 05006, Korea.
Christian HilbeIST Austria, Am Campus 1, 3400 Klosterneuburg, Austria.
Martin A NowakProgram for Evolutionary Dynamics, Department of Mathematics, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States of America.

Funding

Austrian Science Fund FWF J 3475
6 · The paper itself

Abstract

Direct reciprocity is a mechanism for the evolution of cooperation based on repeated interactions. When individuals meet repeatedly, they can use conditional strategies to enforce cooperative outcomes that would not be feasible in one-shot social dilemmas. Direct reciprocity requires that individuals keep track of their past interactions and find the right response. However, there are natural bounds on strategic complexity: Humans find it difficult to remember past interactions accurately, especially over long timespans. Given these limitations, it is natural to ask how complex strategies need to be for cooperation to evolve. Here, we study stochastic evolutionary game dynamics in finite populations to systematically compare the evolutionary performance of reactive strategies, which only respond to the co-player's previous move, and memory-one strategies, which take into account the own and the co-player's previous move. In both cases, we compare deterministic strategy and stochastic strategy spaces. For reactive strategies and small costs, we find that stochasticity benefits cooperation, because it allows for generous-tit-for-tat. For memory one strategies and small costs, we find that stochasticity does not increase the propensity for cooperation, because the deterministic rule of win-stay, lose-shift works best. For memory one strategies and large costs, however, stochasticity can augment cooperation.

Indexed as

Cooperative BehaviorGame TheoryInterpersonal RelationsAlgorithmsHumansMemoryModels, PsychologicalStochastic Processes

Identifiers

PMID27161141
PMCPMC4861973

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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.