First, Do No Harm

“It ain’t what you don’t know that gets you in trouble. It’s what you know for sure that just ain’t so.” – Mark Twain

Primum non nocere.

First, do no harm.

As the election approaches, there is one certainty: you will never hear such words from either candidate. Instead, promises of action abound.

“If elected, I will do this.”

“If elected, I will do that.”

“And when I do these things, America will be stronger, smarter, wealthier, better … for everyone.”

Bold promises sell. Action sells. Thoughtful analysis and exercising restraint does not.

And so we are ultimately left with many deeply flawed policies. Because doing something, anything, is often deemed to be better than doing nothing at all.

“No Child Left Behind.” ���The Affordable Care Act.”

Two different Presidents, two different parties. Two bold promises with equally bold names.

Who doesn’t want to prevent children from being left behind? Who doesn’t want more affordable health care? Only a monster would be against such noble pursuits.

“From this day forward, all students will have a better chance to learn, to excel, and to live out their dreams.” – Bush, January 2002 at the signing of law.

“Once this reform is implemented, health insurance exchanges will be created, a competitive marketplace where uninsured people and small businesses will finally be able to purchase affordable, quality insurance.” – Obama, March 2010 at the signing of law

So we got action. The laws were passed and problems were deemed to be solved.

But were they? Are we really better off today because of these laws? The American people do not believe so (see here and here) and objectively, it would be hard to say they are wrong.

At the time, would doing nothing or waiting until they had a better law have been preferable? Probably, but how often do we choose inaction over action even if it is the right decision?

Not very often. The call to action is hard to resist: “time is of the essence.” We want to say we are doing something about perceived problems, not simply sitting there and thinking. Act now and think about the negative consequences later. And when those consequences arise, never admit that what you did may have been detrimental in any way.

What does this have to do with investing?

Everything. In markets, we are constantly being tempted to do something, to make a trade or wholesale portfolio change whether it is warranted or not. Action is deemed better than inaction. But at least half of the battle in investing is won by doing just the opposite. By avoiding unforced errors, you often win by default. Those errors are the result of overconfidence and believing you “know for sure” something that “just ain’t so.”