Discover Wassily Leontief's groundbreaking input-output analysis and the surprising Leontief Paradox that challenged economic trade theories. Learn about his impact on economics.

Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Vikki Velasquez is a researcher and writer who has ...

Oliguria occurs when you urinate less than 400 mL of urine per day. It’s usually a symptom of kidney problems, and may be caused by dehydration, injury, or some medications. Most people without ...