Algorithms, particularly in the form of artificial intelligence and machine learning, are proliferating in finance and changing how we make decisions. Algorithms have been around for a while in the ...

The original version of this story appeared in Quanta Magazine. Imagine a town with two widget merchants. Customers prefer cheaper widgets, so the merchants must compete to set the lowest price.

Graphs are everywhere. In discrete mathematics, they are structures that show the connections between points, much like a ...

Imagine a town with two widget merchants. Customers prefer cheaper widgets, so the merchants must compete to set the lowest price. Unhappy with their meager profits, they meet one night in a ...