With two different risky assets, an investor can minimize total portfolio volatility through the combination of investments with low to negative correlation. In a higher yield environment, 60/40 can ...

The rooster thinks he summons the sun because the sunrise always follows his crow. Correlation, at its worst, is a very confident rooster. For decades, our data economy has run on the same illusion: ...

A comment posted by a reader on a recent post reprimanded me for suggesting that marijuana caused relationships to go bad. In this instance the reader was mistaken, as I had specifically used the word ...

If you read a lot, like me, you might notice almost daily there’s a new study that contradicts some earlier research. Something causes cancer — then it’s good for you. You know the drill. What’s going ...