Federal Funds Rate Vs. Consumer Price Index

From the first FOMC meeting lead by Janet Yellen, we noticed one important statement:

"The Fed Funds Rate will be kept low when inflation stays at this low level."

Thus, we chart the Fed Funds Rate against the CPI and get this result.

There is a strong correlation between the Fed Funds Rate and the inflation rate (CPI).

So we expect that an increase in interest rates will only happen when inflation starts to rise. The unemployment rate is not on the radar anymore.

Notice that historically the Fed Funds Rate is higher than the inflation rate (positive real interest rate (above 0%)), but today the Fed Funds Rate is lower than the inflation rate (negative real interest rate (below 0%))