The Predictability of FOMC Decisions: Evidence from the Volcker and Greenspan Chairmanships

This paper examines whether there is a systematic relationship between FOMC decisions and publicly available data that would potentially allow the public to anticipate FOMC policy changes. We characterize each FOMC decision as a move to tighten, ease, or leave policy unchanged and use ordered probit to estimate models of the probabilities of each choice. We find a statistically significant relationship between FOMC decisions and measures of inflation and real activity, but this relationship does not accurately predict the directions of FOMC decisions. While short-term interest rate changes prior to FOMC meetings have predictive power, suggesting that the financial market can anticipate FOMC decisions somewhat, other financial variables such as stock price movements appear unrelated to FOMC policy changes. Overall, FOMC decisions are not highly predictable using publicly available data, and adding the private information contained in the FOMC's Greenbook does not significantly increase the predictive accuracy.