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Fewer romantic prospects may lead to riskier investmentsEncountering information suggesting that it may be tough to find a romantic partner shifts people’s decision making toward riskier options, according to new findings from a series of studies published in Psychological Science, a journal of the Association for Psychological Science.“Environmental cues indicating that one will have a relatively difficult time finding a mate can drive people to concentrate their investment choices into a few high-risk, high-return options,” says psychological scientist Joshua Ackerman of the University of Michigan, lead author on the research. “This is true even when the decisions people are making are not explicitly relevant to romantic outcomes.”
“This is exactly opposite from the pattern of investing we would predict if we assumed people were using an economically ‘rational’ decision strategy,” Ackerman explains. “From an evolutionary perspective, if the options are to do whatever it takes to find a romantic partner or risk not finding one, the more rational choice may be to do whatever it takes.”
In a second online study, 105 participants read a newspaper article discussing demographic trends in the U.S. They then evaluated stock packages with equivalent values (e.g., 100 shares in 8 companies, 200 shares in 4 companies, etc.) and chose which package they would invest in.Again, the data showed that both male and female participants who read about unfavorable sex ratios opted for riskier investments, choosing more shares in fewer companies, than those who read about favorable ratios.
The fact that sex ratio had an impact on decisions that were not directly linked with mating success suggests that sexual competition elicits a general mindset geared toward achieving the largest possible reward, regardless of the risk involved.
As such, the researchers argue, these findings could have implications for decision making in domains as diverse as retirement planning, gambling, and even making consumer purchases.
Humans aren’t rational actors; they’re rationalizing actors.
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