When queuing in a supermarket, who do you let go first?

Unlike cooperation among individuals that meet on a regular basis, one-shot interactions among strangers are not motivated by the prospect of receiving a favour in return. So why bother being helpful? In an attempt to shed light on the evolutionary puzzle of what factors result in cooperation among genetically unrelated individuals who meet only once, two German researchers examined a situation well-known to everyone: standing in line at the checkout of a supermarket.

Read the complete article from Springer here: When queuing in a supermarket, who do you let go first?

The full text journal article can be found here: Selective Cooperation in the Supermarket: Field Experimental Evidence for Indirect Reciprocity

Teens Are Not Always Irrational

Here's another potential use for ICE's eye tracker!

Teenagers are irrational and make bad decisions. Or do they? A new Duke study finds that adolescents ages 10 to 16 can be more analytical in their economic choices than many slightly older young adults.

The study suggests not only that society should give adolescents more credit for rationality but also that parents should help children hone their cost-benefit analysis skills in making real-life decisions.

Read the complete article from Duke University here: Teens Are Not Always Irrational