As 2010 nears its end, my colleagues and I are beginning the process, familiar to organizations public and private, of evaluating performance in the past year and setting goals for the year ahead. In that process, one question is pressed: What does success look like?

It is a good question for monetary policy, and one I touched on a couple of posts back. As in that post, I'll cite my boss, Atlanta Fed President Dennis Lockhart from his Nov. 16 speech in Montgomery, Ala.:

"In my mind, the perceived risks—particularly the risk of overshooting inflation—must be weighed against the risks that could be associated with a policy of inaction. Chief among those risks is a recessionary relapse possibly tipping into a long spell of deflation. Through the summer there were some signs of renewed disinflation, which could lead to deflationary expectations taking hold.

"I think it is important to stress that our experience in dealing with inflation versus deflation is not symmetric. In the event of a policy overshoot, inflation containment requires the implementation of the mostly familiar strategy of raising short-term interest rates. In the event of an undershoot, however, dealing with a deflationary spiral and the attendant real consequences would be far less familiar territory for policymakers."

So, in President Lockhart's view, there is the statement of objective—insurance against an unwanted deflationary spiral. And the measure of success? Again from President Lockhart, as quoted in my previous post:

"In regard to price stability, this policy has already shown some signs of success by altering inflation expectations and reducing the risk of unwanted disinflation. To explain, inflation expectations extracted from Treasury inflation-protected securities, or TIPS, spreads over like-duration Treasury securities were declining persistently over the course of late spring through summer.

"Following the August 27 Jackson Hole speech by Fed Chairman Ben Bernanke, these spreads have recovered to previous levels. In addition, according to analysis we've done at the Atlanta Fed, deflation probabilities reflected in TIPS have fallen from the high levels prior to the September FOMC meeting."

Those deflation probabilities were described in an earlier macroblog post, and if you are looking for a measure of success, here is a picture:

Chart1_120210
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As of today's update, these probabilities have fallen to the levels observed prior to the economy's summer soft patch. Importantly, the deflation probabilities have retreated without a movement of straight inflation expectations outside of bounds that are (arguably) consistent with what Chairman Bernanke has described as "the mandate-consistent inflation rate."

Chart2_120210
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Of course, the full story has yet to be written. But it looks like a promising start to me.

Note: The deflation probabilities mentioned in the blog are published weekly as part of the Atlanta Fed's Inflation Project. For a description of inflation expectations, measured as the breakeven rates calculated from TIPS yields, see this article from the Federal Reserve Bank of San Francisco.

By Dave Altig, senior vice president and research director at the Atlanta Fed