Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

According to a recent poll by Gallup.com, 59% of Americans believe that the amount they pay in income taxes is fair. The survey was based on a sample 1017 American adults. If the pollsters talked to ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Khadija Khartit is a strategy, investment, and funding expert, and an educator of fintech and strategic finance ...

Advanced sensor technologies and data analytics can proactively identify grid hazards, enhancing safety and operational efficiency. Visibility gaps in the distribution grid are driving new risks. This ...

Abstract: The least squares (LS) estimate is the archetypical solution of linear regression problems. The asymptotic Gaussianity of the scaled LS error is often used ...

Abstract: Microwave plasma chemical vapor deposition (MPCVD) is one of the main methods to prepare high quality single crystal diamond. In the design and research of MPCVD reactor, the surface ...