Learn about market failure in economics, where supply and demand imbalances lead to inefficient distribution, its types, and causes.

Readers respond to a guest essay by a student at Harvard. Also: Our phone choices; falling behind China on energy.

College applicants worry about sharing their race, gender and immigration status.

The January issue of Journal of Cardiac Failure-Intersections brings together new analyses and original investigations that examine how heart failure care advances in practice through innovation ...