Things feel fair or unfair. Our emotions play a central role in our perceptions of fairness and how we respond to injustice. fMRI imaging studies of individuals making decisions involving fairness indicate that emotions help determine a person’s attitude towards inequity through involvement of the insula.
The question in a University of Illinois and California Institute of Technology study, “Which is better, giving more food to a few hungry people or letting some food go to waste so that everyone gets a share” finds that most people choose the latter. As a social species, we as individuals are fairly intolerant of inequality.
“One could choose to take 15 meals from a single child, for example, or 13 meals from one child and five from another. In the first option the total number of meals lost would be lower. Efficiency would be preserved, but one child would bear the brunt of all the cuts. In the second option more children would share the burden of lost meals but more meals would be lost. The equity was better — but at a cost to efficiency.” We will see that everyone has a fair share even if it means that the overall resources available to us take a greater hit.
Of note, the decisions were made by individuals who were themselves well-fed and not in danger of starving. When things are going well we tend to favor equity for all. In times of scarcity, danger or other threat, self-preservation instincts tend to override this behavior. In other words, it would seem that we would maintain this pattern of sharing because it feels right until the resources actually started running out.
In a world of growing scarcity and competition for resources this becomes increasingly relevant.