Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Explore true cost economics, an approach that includes external costs like pollution in pricing, ensuring a more accurate ...

Find out how and why mathematics is used in microeconomics, its limitations, and the math skills that economics students need.

Dr. Valerie Cholet is a Professor of Kinesiology. She earned her doctorate at Penn State University and has taught in higher education for over 20 years. Her areas of specialization include Exercise ...