Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International stock ...

What is a population viability analysis (PVA)? How is one conducted, and what can it tell us about the likelihood that a species will go extinct? The discipline of Conservation Biology has two general ...

Anxiety is both a mental and physical state of negative expectation. Mentally it is characterized by increased arousal and apprehension tortured into distressing worry, and physically by unpleasant ...

Motivated by behavioral evidence, we develop a tractable method for incorporating competition neglect in a general equilibrium firm investment problem. Competition neglect causes firms to ...

President Trump made headlines this week when he said pregnant women should avoid taking Tylenol, which contains acetaminophen. We spoke with Dr. Jeffrey Litt, an ...

The prehistoric caves of India are a treasure trove of more than just archaeological artifacts. They bear witness to the early human fascination with the cosmos. Recent discoveries have brought to ...