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Abstract

replying to G. Tinghög et al. Nature498,http://dx.doi.org/10.1038/nature12194(2013)

Tinghög et al.1 take issue with two of the ten experiments in our paper2 (studies 6 and 7). Here we reanalyse the data from these experiments as suggested by Tinghög et al.1, and demonstrate that our reported positive effect of time pressure on cooperation is not an artefact. Furthermore, an aggregate analysis based on fifteen studies and 6,910 decisions also replicates this effect3.

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References

  1. Tinghög, G. et al. Intuition and cooperation reconsidered. Nature 498, http://dx.doi.org/10.1038/nature12194 (2013)

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  2. Rand, D. G., Greene, J. D. & Nowak, M. A. Spontaneous giving and calculated greed. Nature 489, 427–430 (2012)

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  3. Rand, D. G. et al. Intuitive cooperation and the social heuristics hypothesis: evidence from 15 time constraint studies. Preprint at SSRN http://ssrn.com/abstract=2222683 (2013)

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  5. Rand, D. G. The promise of Mechanical Turk: how online labor markets can help theorists run behavioral experiments. J. Theor. Biol. 299, 172–179 (2012)

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Authors and Affiliations

  1. Program for Evolutionary Dynamics, Harvard University, Cambridge, 02138, Massachusetts, USA

    David G. Rand & Martin A. Nowak

  2. Department of Psychology, Harvard University, Cambridge, 02138, Massachusetts, USA

    David G. Rand & Joshua D. Greene

  3. Department of Psychology, Yale University, New Haven, 06520, Connecticut, USA

    David G. Rand

  4. Department of Mathematics, Harvard University, Cambridge, 02138, Massachusetts, USA

    Martin A. Nowak

  5. Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, 02138, Massachusetts, USA

    Martin A. Nowak

Authors
  1. David G. Rand
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  2. Joshua D. Greene
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  3. Martin A. Nowak
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Contributions

D.G.R., J.D.G. and M.A.N. performed the analysis and wrote the paper.

Corresponding author

Correspondence to David G. Rand.

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Rand, D., Greene, J. & Nowak, M. Rand et al. reply. Nature 498, E2–E3 (2013). https://doi.org/10.1038/nature12195

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