+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Strength of social tie predicts cooperative investment in a human social network

, : Strength of social tie predicts cooperative investment in a human social network. Plos One 6(3): E18338-E18338

Social networks--diagrams which reflect the social structure of animal groups--are increasingly viewed as useful tools in behavioural ecology and evolutionary biology. Network structure may be especially relevant to the study of cooperation, because the action of mechanisms which affect the cost:benefit ratio of cooperating (e.g. reciprocity, punishment, image scoring) is likely to be mediated by the relative position of actor and recipient in the network. Social proximity could thus affect cooperation in a similar manner to biological relatedness. To test this hypothesis, we recruited members of a real-world social group and used a questionnaire to reveal their network. Participants were asked to endure physical discomfort in order to earn money for themselves and other group members, allowing us to explore relationships between willingness to suffer a cost on another's behalf and the relative social position of donor and recipient. Cost endured was positively correlated with the strength of the social tie between donor and recipient. Further, donors suffered greater costs when a relationship was reciprocated. Interestingly, participants regularly suffered greater discomfort for very close peers than for themselves. Our results provide new insight into the effect of social structure on the direct benefits of cooperation.


PMID: 21479173

DOI: 10.1371/journal.pone.0018338

Other references

Brandenberger, G.; Gronfier, C.; Simon, C.; Otzenberger, H.; Charloux, A.; Piquard, F., 1998: Oscillations in sympatho-vagal balance are inversely related to variations in delta wave activity. Journal of Sleep Research 7(SUPPL 2): 30, Sept

Langton, M., 1991: The microstructure of yoghurt. A literature review. This review begins with an account of yoghurt manufacture. Electron microscopy is used to characterize the microstructure of yoghurt. Electron microscopy techniques are outlined. The effect of heat treatment of milk before incubation, yoghurt star...

Pototschnig, J.V.; Lackner, F.; Hauser, A.W.; Ernst, W.E., 2017: Rydberg states of alkali atoms on superfluid helium nanodroplets: inside or outside?. Electronic excitations of an electron bound to an alkali metal ion inside a droplet of superfluid <sup>4</sup>He are computed via a combination of helium density functional theory and the numerical integration of the Schrödinger equat...

Olsen, Laura J., 1995: Targeting and import of proteins into higher plant peroxisomes. Journal of Cellular Biochemistry Supplement 0(19A): 146

Merin, R.G., 1966: Congenital diaphragmatic hernia: from the anesthesiologist's viewpoint. Anesthesia and Analgesia 45(1): 44-52

Dumont, P., 1957: Sheep production in 1956. There were 8, 355, 000 sheep in France in 1956, an increase of 2% over the previous year. Of the 20 main mutton-producing departments the majority have maintained their numbers, while 5 have shown considerable increases. Economic aspects of mutton...

Jacobsen, E-Marie.; Dahm, A.Erik.Astrup.; Vartdal, T.; Sandset, P.Morten., 2014: Anticoagulation for venous thrombosis and internal diseases. Tidsskrift for den Norske Laegeforening 134(9): 924-924

Ulizzi, L.; Zonta, L.A., 1994: Sex ratio and selection by early mortality in humans: Fifty-year analysis in different ethnic groups. We studied the sex ratio (M/F) in representative populations of the main human ethnic groups, namely, US whites, US blacks, and Japanese. The data cover a period of over 50 years. For intra-ethnic comparison, we included analogous data on Italians...

Pisek, A.; Larcher, W.; Unter Holzner, R., 1967: Cardinal temperature ranges for photosynthesis, and threshold temperatures for leaf survival in different spermatophytes. I. Minimum temperatures in the range for net assimilation, freezing and frost injury of leaves. Plants from three altitudes near Innsbruck, with widely differing temperature conditions, and also from a Mediterranean-like habitat N. of Lake Garda, were studied for (1) minimum temperature for net assimilation in relation to (2) freezing point...

de Alwis SP.R.ndjbar-Daemi, 1985: Field equations and spontaneous compactification in quasi-Riemannian theories of gravity. Physical Review. D, Particles and Fields 32(6): 1345-1352