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THE EFFECT OF THE DEGREE OF LOYALTY AND RELATEDNESS ON DISCOUNTING HYPOTHETICAL MONEY GAINS (Wplyw stopnia lojalnosci i pokrewienstwa na dyskontowanie hipotetycznych nagrod pienieznych)

100%
Osinski J. T.
Psychologia-Etologia-Genetyka
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2008
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vol. 18
71-86
EN
The term social discounting refers to the decrease of a subjective value of a reward to be shared with one or more people compared to a reward exclusive to an individual. Similarly to temporal and probabilistic discounting, this process can have an adaptive function. Based on Trivers' reciprocal altruism and Hamilton's inclusive fitness theories, the following hypotheses were formulated: (1) there should be discounting relative to the degree of a partner's loyalty, i.e. the subjective value of a resource to be shared with another person should decrease as that person's loyalty decreases; (2) the rate of social discounting relative to the partner's loyalty should be lower for relatives than for unrelated recipients; (3) the rate of social discounting should be negatively correlated with agreeableness; (4) the rate of social discounting when sharing with an unrelated person should be negatively correlated with neuroticism; (5) there should be a positive correlation between the rate of social and probabilistic discounting. In order to verify these hypotheses, we measured the rate of social discounting in 200 subjects aged 18-53 years. The results confirmed hypotheses one, two, and three.
2

CONSANGUINITY, LOCUS OF CONTROL, AND AGREEABLENESS AND RATE OF SOCIAL DISCOUNTING

88%
Ostaszewski P., Englisz J.
Psychological Studies
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2006
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vol. 44
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issue 3
41-50
EN
The aim of this research was twofold: (1) to find out if there is a relationship between the rate of social discounting, and the degree of consanguinity with the sharing group members, (2) to find out if the rate of social discounting correlates with two personality traits: Rotter's locus of control, and agreeableness from the Costa's and McCrae's Five Factors personality model. Participants completed a social discounting questionnaire, Rotter's I-E Scale, and Costa's and McCrae's NEO FFI questionnaire. In the social discounting questionnaire participants' task was to indicate their preferences regarding pairs of hypothetical amounts of money: one to be received for themselves, and the other one to be shared with the group of relatives or strangers. The rate of social discounting was higher when the sharing group consisted of strangers as opposed to the group consisted of relatives. In addition, a positive correlation was revealed between the rate of social discounting and the degree of agreeableness. The results support a hypothesis stating that people prefer to share a reward with relatives rather then with strangers. The finding can be explained within an evolutionary psychology framework. It can be understood as an example of kin altruism.
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