John Hussman shows why US corporate earnings are now experiencing significant downward pressure, at a time when expected long term returns on US equities are already very poor.
https://www.hussmanfunds.com/wmc/wmc131216.htm

Most Investment Advice Is Not In Your Best Interest
This article is about why messaging like that tweet is wrong, what the math actually says, and how you can find out whether your own advisor understands the difference.

