Stock market volatility scares people. But, volatility itself isn't necessarily bad. Only if there are fundamental economic problems, something that could cause a recession, would we think volatility itself is a warning sign.

So, we watch the Four Pillars. These Pillars – monetary policy, tax policy, spending & regulatory policy, and trade policy – are the real threats to prosperity. Right now, these Pillars suggest that economic fundamentals remain sound.

Monetary Policy: We're astounded some analysts interpreted last Wednesday's pronouncements from the Federal Reserve as dovish. The Fed upgraded its forecasts for economic growth, projected a lower unemployment rate through 2020 and also expects inflation to temporarily exceed its long-term inflation target of 2.0% in 2020.

As recently as December, only four of sixteen Fed policymakers projected four or more rate hikes this year; now, seven of fifteen are in the more aggressive camp. Some analysts dwell on the fact that the "median" policymaker still expects only three hikes in 2018, ignoring the trend toward a more aggressive Fed.

But all of this misses the real point. Monetary policy will still be loose at the end of 2018, whether the Fed raises rates three or four times this year. The federal funds rate is about 120 basis points below the yield on the 10-year Treasury (which will rise as the Fed hikes), and is also well below the trend in nominal GDP growth. Meanwhile, the banking system still holds about $2 trillion in excess reserves. Monetary policy is a tailwind for growth, not a headwind.

Taxes: The tax cut passed last year is the most pro-growth tax cut since the early 1980s, particularly on the corporate side. Some analysts argue that the money is just going to be used for share buybacks, but we find that hard to believe. A lower tax rate means companies have more of an incentive to pursue business ideas that they were on the fence about.

And there is a big difference between who cuts a check to the government and who truly bears the burden of a tax, what economists call the "incidence of a tax."