250,000 Melbourne residents losing water due to logging

Logging in Melbourne's largest water catchment has led to a loss of water equivalent to the amount used by 250,000 people each year, new research from The Australian National University (ANU) shows.

Diverse populations make rational collective decisions

Yes/no binary decisions by individual ants can lead to a rational decision as a collective when the individuals have differing preferences to the subject, according to research recently published in the journal Royal Society ...

How artificial intelligence is changing economic theory

A century of economic theory assumed that, given their available options, humans would always make rational decisions. Economists even had a name for this construct: homo economicus, the economic man.

Less is more when choosing between groups of assorted items

When making decisions about the value of an assortment of different objects, people approximate an average overall value, which though frequently useful can lead to apparently irrational decision-making. A new study published ...