Anyone who understands central banks knows the Fed must hike ASAP

Anyone who understands central banks knows the Fed must hike ASAP · CNBC

If you accept the propositions (a) that the Fed's policy should be data-driven in accordance with its mandate and (b) that the monetary policy operates with long and variable lags, you should have no problem accepting the conclusion that a major adjustment of the Fed's credit stance is long overdue.

The most recent data on America's economic growth, labor market conditions and inflation developments make it very difficult to understand why the Fed keeps postponing the process of a gradual and orderly normalization of its bloated monetary base (M0) and its implausibly low federal funds rate - the only interest rate it directly controls.

To explain that, here is a quick review of the variables that should drive the Fed's policy.

The latest number for first-quarter GDP growth is more than double its initial estimate. It is showing an annualized quarter-on-quarter pace of 1.1 percent and a 2.1 percent increase from the year earlier.

Most people, me included, consider that this growth rate is too low. But the problem is that even that low growth rate of 2.1 percent exceeds America's potential and noninflationary growth rate (i.e., a growth rate given by productivity and the available labor and (physical) capital resources) of 1.6 percent for the fifth consecutive year.

Not by Fed alone

Should we blame the Fed for that? I can visualize a sea of hands stuck out in emphatic approval. But that would not only be grossly unfair to our money managers – it would also be dead wrong.

Why? Because the volume and the efficiency of labor and capital stocks are essentially structural problems that must be addressed by structural policies.

Sure, the Fed can help by supporting domestic demand with appropriate credit policies, but the labor force productivity (i.e., the quality of human capital) and investments in best-practice technologies depend on education, labor force retraining, investment incentives and trade policies in an economy widely open to unbridled international competition and predatory pricing.

The Fed, in my view, has done its part – and more – but the two other big players in economic policy (you know who they are, don't you?) have fallen far short of what's needed to go back to an average potential growth rate of 2.7 percent we had in the last two decades.

So, we can perhaps temporarily settle for this: That 2.1 percent actual growth rate is fine, given the structural problems we continue to face.

We should also acknowledge that - in the absence of fiscal and structural policies we need - the Fed takes most of the credit for solid income and job numbers that will strongly underpin our domestic demand in the months ahead.