Final answer:
The Federal Reserve does not have a 2% inflation target because higher inflation means lower unemployment, because inflation is likely overestimated, or because the Fed cannot precisely adjust inflation.
Step-by-step explanation:
The reason the Federal Reserve has a 2% inflation target is not because higher inflation means lower unemployment. Higher inflation actually leads to higher nominal interest rates, which limits the Fed's policy options. It is also not because inflation is likely overestimated, as 2% measured inflation may correspond to 1% or less actual inflation. It is also not because the Fed cannot precisely adjust inflation, as deflation is particularly bad.