What's up in

economics

Nash equilibrium maze
Game Theory

In Game Theory, No Clear Path to Equilibrium

John Nash’s notion of equilibrium is ubiquitous in economic theory, but a new study shows that it is often impossible to reach efficiently.

Abstractions blog

All Is Not Fair in Cake-Cutting and Math

When divvying something up, there’s more than one way to define what’s fair.

algorithms

How to Cut Cake Fairly and Finally Eat It Too

Computer scientists have come up with a bounded algorithm that can fairly divide a cake among any number of people.

neuroscience

The Neuroscience Behind Bad Decisions

Irrationality may be a consequence of the brain’s ravenous energy needs.