Encryption systems rely on “random” numbers, but conventional computers can’t generate them perfectly. New research shows that quantum physics can. By Alexander Nazaryan Researchers in Switzerland ...

A guide with examples for learning this key idea in options trading Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Variable life insurance, also called variable appreciable life insurance, provides lifelong coverage, as well as a cash value account that you get to decide how to invest. Variable life insurance ...

If your credit card has a variable APR, expect it to fluctuate for a variety of reasons. For example, if you miss a payment or your credit score has dropped, the card issuer may raise your APR. But ...

Positron emission tomography (PET) scans can detect cancer earlier than other imaging tests by showing areas that use a lot of glucose. However, false-positive results can happen due to infections, ...

Thomas Helbling is an Advisor in the IMF’s Research Department. Opinions expressed in articles and other materials are those of the authors; they do not necessarily reflect IMF policy.