Envy divides society

It's generally recognized that differences in background and education cement class differences. It is less clear when and under what circumstances individual psychological forces can drive an initially homogenous social ...

Exploring the causes of persistent corruption

Corruption impedes equitable development, destabilizes societies, and undermines the institutions and values of democracy. It is viewed by many as one of the world's greatest problems. According to a Gallup poll, a majority ...

How superstitions spread

Ancient Roman leaders once made decisions about important events, such as when to hold elections or where to build new cities, based on the presence or flight patterns of birds. Builders often omit the thirteenth floor from ...

Plant eaters, and the flora they eat, give peace a chance

(Phys.org) —Plants are often described as being in an evolutionary arms race with the creatures that eat them. Plant eaters develop new strategies for attacking, and plants acquire new ways to defend themselves.

When leaving your wealth to your sister's children makes sense

In most human societies, men pass on their worldly goods to their wife's children. But in about ten percent of societies, men transfer their wealth to their sister's sons, a process called matrilineal inheritance. A new study ...

When reputation is at stake, punishment becomes more responsible

(Phys.org) -- The evolution of cooperative behaviour in people is often explained by the fact that it provides the opportunity to punish undesirable behaviour. However, such punishment is costly and the benefits for the person ...

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