The whiteboard in Professor Mark Stehlik’s office at Carnegie Mellon University still has the details of what turned into a ...

A person with an addiction uses a substance, or engages in a behavior, for which the rewarding effects provide a compelling incentive to repeat the activity, despite detrimental consequences.

Capitalism is often thought of as an economic system in which private actors own and control property in accord with their interests, and demand and supply freely set prices in markets in a way that ...