Real Interest Rates Please

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Thursday, 09 September 2010 04:10

The NYT has a front page piece on how low interest rates are hurting people who live on their saving. While interest rates are low, it would have been worth noting that the inflation rate is also very low. This is important to take into account in this sort of discussion, since the inflation rate had typically been higher in prior decades.

The real interest rate, the interest rate minus the inflation rate is the true return to savers. If the interest rate is 3 percent and the inflation rate is 3 percent, then the real value of a person's savings would erode by by 3 percent a year, if they spent all of their interest. Currently the inflation rate is close to 1 percent, which means that the real value of savings is only be reduced by 1 percent annually if a person spends their interest.

Real interest rates are low at present, which is a deliberate policy, but just reporting on the nominal rates presents a distorted picture of the situation facing savers.