Most economists believe that monetary policy actions, such as changes in the Fed’s pace of buying bonds or in its target for the federal funds rate, affect real GDP and employment only with a lag of several months or longer. But monetary policy actions can have a more immediate effect on the prices of financial assets like stocks and bonds.
Investors in financial markets are forward looking because the prices of financial assets are determined by investors’ expectations of the future. (We discuss this point in Economics and Microeconomics, Chapter 8, Section 8.2, Macroeconomics, Chapter 6, Section 6.2, and Money, Banking and the Financial System, Chapter 6.) For instance, stock prices depend on the future profitability of firms, so if investors come to believe that future economic growth is likely to be slower, thereby reducing firms’ profits, the investors will sell stocks causing stock prices to decline.
Similarly, holders of existing bonds will suffer losses if the interest rates on newly issued bonds are higher than the interest rates on existing bonds. Therefore, if investors come to believe that future interest rates are likely to be higher than they had previously expected them to be, they will sell bonds, thereby causing their prices to decline and the interest rates on them to rise. (Recall that the prices of bonds and the interest rates (or yields) on them move in opposite directions: If the price of a bond falls, the interest rate on the bond will increase; if the price of a bond rises, the interest rate on the bond will decrease. To review this concept, see the Appendix to Economics and Microeconomics Chapter 8, the Appendix to Macroeconomics Chapter 6, and Money, Banking, and the Financial System, Chapter 3.)
Because monetary policy actions can affect future interest rates and future levels of real GDP, investors are alert for any new information that would throw light on the Fed’s intentions. When new information appears, the result can be a rapid change in the prices of financial assets. We saw this outcome on January 5, 2022, when the Fed released the minutes of the Federal Open Market Committee meeting held on December 14 and 15, 2021. At the conclusion of the meeting, the FOMC announced that it would be reducing its purchases of long-term Treasury bonds and mortgage-backed securities. These purchases are intended to aid the expansion of real GDP and employment by keeping long-term interest rates from rising. The FOMC also announced that it intended to increase its target for the federal funds rate when “labor market conditions have reached levels consistent with the Committee’s assessments of maximum employment.”
When the minutes of this FOMC meeting were released at 2 pm on January 5, 2022, many investors realized that the Fed might increase its target for the federal funds rate in March 2022—earlier than most had expected. In this sense, the release of the FOMC minutes represented new information about future Fed policy and the markets quickly reacted. Selling of stocks caused the S&P 500 to decline by nearly 100 points (or about 2 percent) and the Nasdaq to decline by more than 500 points (or more than 3 percent). Similarly, the price of Treasury securities fell and, therefore, their interest rates rose.
Investors had concluded from the FOMC minutes that economic growth was likely to be slower during 2022 and interest rates were likely to be higher than they had previously expected. This change in investors’ expectations was quickly reflected in falling prices of stocks and bonds.
Sources: An Associated Press article on the reaction to the release of the FOMC minutes can be found HERE; the FOMC’s statement following its December 2021 meeting can be found HERE; and the minutes of the FOMC meeting can be found HERE.