More Scary Numbers

 | Apr 06, 2015 05:35PM ET

The list of things hitting cyclical peaks gets longer every day. Besides the nominal amounts (debt, derivatives, money supply) that are now at all-time highs, some “as a share of GDP” indicators are starting to say similar, very scary things:

Corporate profits

In a world of competition for scarce resources, corporations face some natural limits on how much they can earn. For one thing, if business is too profitable it attracts a deluge of new entrants who drive down margins — and make stupid investments that screw things up for everyone — thus causing a broad-based recession that craters corporate profits.

And when it’s perceived that companies are taking too much (as when CEO salaries and executive stock options become obscenely generous compared to worker salaries), the other players, including government and labor, start grabbing what they see as their fair share. That’s happening now with the higher minimum wage movement and government attempts to close offshore tax loopholes, among other things.

So corporate profits tend to be cyclical, rising as a share of GDP in good times and then plunging during recessions. The chart below has this number at a new record high. In other words, every time it has been anywhere close to today’s level the result has been a nasty mean reversion.