mans behave altruistically in one-shot interactions under total anonymity. In search of explanations for such behavior, it has been argued that at least some individuals have a general tendency to behave altruistically independent of profitability. In fact, a stable altruistic trait would be adaptive if it were recognizable. Then, altruists could choose each other in order to retain benefits through mutual cooperation. Previous research has shown that individuals can predict the degree of altruistic behavior of strangers by reading signs…
onomic recessions, the industrial shift from manufacturing toward service industries, and rising global competition have contributed to uncertainty about job security, with potential consequences for workers’ health. To address limitations of prior research on the health consequences of perceived job insecurity, we use longitudinal data from two nationally-representative samples of the United States population, and examine episodic and persistent perceived job insecurity over periods of about three years to almost a decade. Results show that persistent perceived job insecurity is…
a Science Daily: It's an unfamiliar neighborhood and you find yourself in the middle of a bunch of streets and buildings you've never seen before. Giving the environment a quick once-over, you make a snap decision about whether you're safe or not. And chances are, that first 'gut' call is the right one, say Binghamton University researchers Dan O'Brien and David Sloan Wilson in an article published in the current issue of Journal of Personality and Social Psychology. And: Through…
is well understood that personal grooming provides an important source of communication about individuals, their values and personalities. From an economic point of view, grooming is a non-market activity. The standard view is that time spent in non-market activities is counterproductive as it reduces work effort and job commitment. But grooming is different. There is reason to believe that certain productive personality traits may be inferred on the basis of personal grooming. Using data from the American Time Use…
recent episode of the consistently excellent Radiolab explored the idea, covering the work of Robert Axelrod. Turns out the age old cliche can be an incredibly powerful way to deal with others: A tit-for-tat strategy plays the iterated prisoners' dilemma game by cooperating on the first move, and then making the same choice as the other player did on the previous move. This strategy has been shown to be a very robust in that it does well with a…
a Eurekalert: Students can combat test anxiety and improve performance by writing about their worries immediately before the exam begins, according to a University of Chicago study published Friday in the journal Science. And: ...for students given the opportunity to write before the exam, those highest in test anxiety performed just as well as their less anxious classmates. "Writing about your worries for 10 minutes before an upcoming exam leveled the playing field such that those students who usually get…
e New York Times has an interesting article on the subject but the takeaway is here: In what was the longest sleep-restriction study of its kind, Dinges and his lead author, Hans Van Dongen, assigned dozens of subjects to three different groups for their 2003 study: some slept four hours, others six hours and others, for the lucky control group, eight hours — for two weeks in the lab... ...Not surprisingly, those who had eight hours of sleep hardly had…
a Eurekalert: The expectations people have about how others will behave play a large role in determining whether people cooperate with each other or not. And moreover that very first expectation, or impression, is hard to change. "This is particularly true when the impression is a negative one," says Michael Kurschilgen from the Max Planck Institute for Research on Collective Goods in Bonn, summarising the key findings of a study in which he and his colleagues Christoph Engel and Sebastian…
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