The Threat of Bubbles, Not Inflation, Should Guide Fed Policy

Rather than obsessing about inflation, Fed chair Janet Yellen and her colleagues should be seeking to provide as much support as they can to the economy, consistent with preventing bubbles from forming in asset markets such as stocks, bonds, and, especially, real estate. That is where the threat lies, not in rising inflation.

.. the so-called NAIRU, or Non-Accelerating Inflation Rate of Unemployment. Theoretically, the concept makes sense. Empirically, it’s extremely elusive, because it depends on many other things, such as the rate of productivity growth, tax rates, the labor-force participation rate, and the level of unionization.