Andrew Beattie was part of the original editorial team at Investopedia and has spent twenty years writing on a diverse range of financial topics including business, investing, personal finance, and ...

Kristina Zucchi is an investment analyst and financial writer with 15+ years of experience managing portfolios and conducting equity research. Cierra Murry is an expert in banking, credit cards, ...

The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

Beta is the 2nd letter in the Greek alphabet, and the financial world uses it to refer to the sensitivity of an asset’s price compared to a specific index or benchmark. Beta is also used as a measure ...

Investing in real estate, and more specifically in rental properties, can be one of the most lucrative and safe investments people can make. With long-term appreciation, a monthly cash-flow and tax ...

Productivity is computed through the comparison of total units of output within an economy to the total units of input within an economy. Productivity is considered an important measure of an ...

Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI Science Center. Sutter is also host of the podcasts Ask a Spaceman and RealSpace, and the YouTube series ...

How many times have you said, “I wish the days were longer”? Well, NASA scientists say the construction of China’s Three ...

Physicists like to share the legend of a professor who asked students how they might determine the height of a building using a barometer. The story goes on to list some of the ways you might do that.