Powerful economic forces, such as sharply lower growth in the labor force, are pushing interest rates down. By Jeremy J. Siegel, Contributing Columnist From Kiplinger's Personal Finance, December 2014 The Dot Plot. It sounds like a nefarious scheme hatched in a spy novel. But its power to move markets is greater than any other piece of data released by the Federal Reserve at meetings of its Federal Open Market Committee, which is responsible for setting interest rates. Each quarter, the 19 members of the FOMC are asked to forecast gross domestic product, unemployment, inflation and, most important, the federal funds rate (the rate at which banks lend excess reserves to each other overnight, and the key interest rate the Fed uses to set monetary policy). Funds-rate forecasts are plotted as dots on a graph. The resulting “dot plot” is the Fed’s best predictor of the future path of short-term interest rates, which are critical for both the stock and bond markets.See Also: Kiplinger's Economic Outlooks: Interest Rates The dot plot released in September was jarring to a number of market watchers. Only one FOMC member expected interest rates to rise by the end of this year. But rates are expected to rise significantly in 2015. By the end of next year, most committee members think the funds rate will be about 1.25% (up a full point from 0.25% currently), and by the end of 2016, the average forecast is nearly 3%. By the end of 2017, most members anticipate that the rate will be very close to their long-term target of 3.75%. Sponsored Content Those forecasts are troublesome because they are well above what the market expects the federal funds rate to be. In the fed funds futures market, which is a guidepost to future rates, the December 2015 contract trades at just 0.75%, about 0.5 percentage point below the FOMC’s expectation. And the December 2016 contract trades about 0.75 percentage point below Fed expectations. The longest-dated futures contract (August 2017) trades at just 2.40%, more than one whole percentage point below the Fed’s prediction for the end of that year. Some critics have complained that the Fed is “behind the curve” by holding the funds rate near zero for too long. That may have been true in the past, but it’s no longer the case. The Fed’s interest-rate outlook is far more hawkish than that of investors in the futures market, who bet substantial amounts of money on what the rate will be. Advertisement Which prediction should we believe? Looking ahead to the next year, I think the Fed’s more aggressive view is right. Economic growth will be 3% or higher over the next several quarters, which means the Fed will have to raise interest rates sooner rather than later. However, over the longer run, I think the Fed’s interest-rate forecasts are far too high. As I said in my Going Long column last June, powerful economic forces—sharply slower growth in the labor force, declining commodity prices and an aging population of investors who prefer the lower volatility of bonds to stocks—are pushing interest rates down. The Fed’s mistaken long-term forecasts hark back to the period from 1960 through the 1990s, when gross domestic product grew, on average, more than 3.5% a year and inflation averaged 4.5%. In those decades, the fed funds rate averaged 6.7%, about two percentage points above inflation. But today, with long-term GDP growth forecast to drop to 2% annually with a much lower inflation rate, the fed funds target rate should settle somewhere between 2% and 3%. That means the futures market, and not the Fed, is closer to being right about the level of rates long term. If the Fed ultimately tries to lift the fed funds rate higher than the futures rate, it risks triggering a recession. Eventually, the Fed will have to alter its forecasts when it confronts the fundamental forces pushing interest rates lower. As Fed chairman Janet Yellen emphasizes, all of the Fed’s interest-rate forecasts depend on the evolution of the data. Any good plan must adapt to changing circumstances, and the dot plot is no exception.