The ionosphere is of great importance to shortwave radio transmissions, since it allows radio waves to be refracted and ...

Darian Woods is a host of The Indicator from Planet Money. He blends economics, journalism, and an ear for audio to tell stories that explain the global economy. He's reported on banks defending ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Erika Rasure is globally-recognized as a ...

Stock market indexes gauge economic performance by collecting data across various companies. Nasdaq, focusing on tech stocks, helps track sector-specific market trends and performance. Investing in ...

A bite-sized show about big ideas. From the people who make Planet Money, The Indicator helps you make sense of what's happening in today's economy. It's a quick hit of insight into money, work, and ...