All Stories

  1. The Good, the Bad, and the Unflinchingly Selfish
  2. Reflections on the Time-Pressure Cooperation Registered Replication Report
  3. Cooperation, Fast and Slow
  4. Habits of Virtue: Creating Norms of Cooperation and Defection in the Laboratory
  5. What does “clean” really mean? The implicit framing of decontextualized experiments
  6. Who cooperates in repeated games: The role of altruism, inequity aversion, and demographics
  7. Human cooperation
  8. Parametric Excitation and Evolutionary Dynamics
  9. Rand et al. reply
  10. Religious motivations for cooperation: an experimental investigation using explicit primes
  11. Spontaneous giving and calculated greed
  12. Delayed and Inconsistent Information and the Evolution of Trust
  13. Evolution of in-group favoritism
  14. Evolutionary dynamics in finite populations can explain the full range of cooperative behaviors observed in the centipede game
  15. Economic Games on the Internet: The Effect of $1 Stakes
  16. Information, Irrationality and the Evolution of Trust
  17. Evolutionary dynamics of a system with periodic coefficients
  18. The evolution of antisocial punishment in optional public goods games
  19. The Evolution of Coercive Institutional Punishment
  20. The online laboratory: conducting experiments in a real labor market
  21. Advancing systems medicine and therapeutics through biosimulation
  22. Balance equations can buffer noisy and sustained environmental perturbations of circadian clocks
  23. Anti-social punishment can prevent the co-evolution of punishment and cooperation
  24. Currency value moderates equity preference among young children
  25. Systematic Differences in Impact across Publication Tracks at PNAS
  26. Decision-Making in Research Tasks with Sequential Testing
  27. Direct reciprocity with costly punishment: Generous tit-for-tat prevails
  28. Winners don’t punish
  29. P5-25
  30. The Cooperative Phenotype
  31. Who Cooperates in Repeated Games?
  32. Should Law Keep Pace with Society?
  33. Positive Emotion and (Dis)Inhibition Interact to Predict Cooperative Behavior
  34. What Does 'Clean' Really Mean? The Implicit Framing of Decontextualized Experiments
  35. Do People Care About Social Context? Framing Effects in Dictator Games
  36. Economic Games on the Internet: The Effect of $1 Stakes
  37. Strategic Self-Interest Motivates Seemingly 'Fair' Offers in the Ultimatum Game
  38. It's the Thought that Counts: The Role of Intentions in Reciprocal Altruism
  39. Reflection Does Not Undermine Self-Interested Cooperation: Support for the Social Heuristics Hypothesis
  40. Habits of Virtue: Creating Norms of Cooperation and Defection in the Laboratory
  41. Punishment Does Not Promote Cooperation Under Exploration Dynamics When Anti-Social Punishment is Possible
  42. Arginine Vasopressin 1a Receptor (AVPR1a) RS3 Repeat Polymorphism Associated with Entrepreneurship
  43. Genetic Correlates of Economic and Social Risk Taking
  44. Risking Your Life Without a Second Thought: Intuitive Decision-Making and Extreme Altruism
  45. Cooperation Increases with the Benefit-to-Cost Ratio in One-Shot Prisoner's Dilemma Experiments
  46. Civic Capital in Two Cultures: The Nature of Cooperation in Romania and USA
  47. Intuitive Cooperation and the Social Heuristics Hypothesis: Evidence from 15 Time Constraint Studies
  48. Religious Motivations for Cooperation: An Experimental Investigation Using Explicit Primes