The Committee also considered policy strategies that would involve the use of an intermediate target such as nominal gross domestic product (GDP) or the price level. The staff presented model simulations that suggested that nominal GDP targeting could, in principle, be helpful in promoting a stronger economic recovery in a context of longer-run price stability. Other simulations suggested that the single-minded pursuit of a price-level target would not be very effective in fostering maximum sustainable employment; it was noted, however, that price-level targeting where the central bank maintained flexibility to stabilize economic activity over the short term could generate economic outcomes that would be more consistent with the dual mandate. More broadly, a number of participants expressed concern that switching to a new policy framework could heighten uncertainty about future monetary policy, risk unmooring longer-term inflation expectations, or fail to address risks to financial stability. Several participants observed that the efficacy of nominal GDP targeting depended crucially on some strong assumptions, including the premise that the Committee could make a credible commitment to maintaining such a strategy over a long time horizon and that policymakers would continue adhering to that strategy even in the face of a significant increase in inflation. In addition, some participants noted that such an approach would involve substantial operational hurdles, including the difficulty of specifying an appropriate target level. In light of the significant challenges associated with the adoption of such frameworks, participants agreed that it would not be advisable to make such a change under present circumstances.
Yes, a price level target is a bad idea--big problems with supply shocks.
Yes, picking a growth path of nominal GDP is difficult.
But nominal GDP targeting results in stable inflation in the long run, so there should be no problem with inflation expectations becoming unanchored. That is the danger of inflation targeting. When the rule is to do nothing about inflation surprises, then there must be a constant worry about inflation expectations.
Not yet? Perhaps one day.