New research shows people are often influenced by their beliefs and predictions about the likelihood of others' actions, and less so by the anticipation of regret.
Competition in the marketplace for ideas is different to competition in the market for ordinary goods and services. Bad ideas don't necessarily get trashed.
John Nash’s contributions to Game Theory opened the door to modern economic theory, helping us understand issues from the Cold War to how to promote efficiency in markets and deter crime, say Carlos Pimienta and Gabriele Gratton.