How Much Higher Should Interest Rates Be?

From Calafia Beach Pundit (Sept 17/pre-FOMC):

We're leaving paradise today, so in the absence of time I offer this chart which makes a statement about the level of inflation and interest rates over the past decade. Inflation and inflation expectations are one of the most important determinants of interest rates.

From 1993 through early 2011, Treasury yields tracked core inflation quite closely, and interest rates were always somewhat higher than inflation, just as theory would predict. But from early 2011 through April of this year, that wasn't the case: interest rates moved down while inflation rose, and interest rates fell below the level of inflation (and real interest rates entered negative territory).

Most observers seem to believe that interest rates were abnormally low because of the Fed's QE program. But as the chart above shows, interest rates actually rose each time the Fed bought large quantities of bonds....MORE