Cooperation in image-scoring populations requires only about two interactions per player per lifetime.
Evidence
A minimum number of rounds per generation is needed for cooperation to prevail. This number can be very small: each player needs to be chosen for only about two interactions per lifetime. (In this case, there is a probability of only 1/4 that a defector can be punished, if he is chosen first as a donor and then as a recipient.) — Nowak, M. A., & Sigmund, K, Evolution of Indirect Reciprocity by…, 68
Categorization
- CANDY: Surprisingly low threshold — cooperation needs just two exchanges per lifetime, with only a 1/4 chance the defector even gets caught.
- XREF: connects to: In image-scoring simulations cooperation wins when interaction frequency per generation is high. — Nowak, M. A., & Sigmund, K, Evolution of Indirect Reciprocity by…, 38; Donor-specific image scoring sustains cooperation while self-only strategies fail — Nowak, M. A., & Sigmund, K, Evolution of Indirect Reciprocity by…, 73; A two-level analytical image-scoring model can be solved rather than simulated — Nowak, M. A., & Sigmund, K, Evolution of Indirect Reciprocity by…, 74
Related
- In image-scoring simulations cooperation wins when interaction frequency per generation is high. (similarity 0.91)
- Donor-specific image scoring sustains cooperation while self-only strategies fail (similarity 0.88)
- A two-level analytical image-scoring model can be solved rather than simulated (similarity 0.87)
- An image score updates only when one acts as donor, not as recipient. (similarity 0.83)
- Nowak, M. A., & Sigmund, K — Evolution of Indirect Reciprocity by Image Scoring (similarity 0.82)
- Unconditional cooperators must be modeled separately from image-scoring discriminators. (similarity 0.82)
Broader Connections
- Donor-specific image scoring sustains cooperation while self-only strategies fail
#expands(0.85) — Nowak, M. A., & Sigmund, K, Evolution of Indirect Reciprocity by…, 73 - A two-level analytical image-scoring model can be solved rather than simulated
#expands(0.78) — Nowak, M. A., & Sigmund, K, Evolution of Indirect Reciprocity by…, 74