The economist who introduced the inverted yield curve as a recession predictor has forecasted a slowdown for the U.S. economy in 2024. What Happened: Campbell Harvey, a Canadian economist and researcher at Duke University, has indicated that the U.S. economy is likely to experience a downturn this year, reported Business Insider on Friday. Harvey’s work has shown that an inverted yield curve, where short-term Treasury yields exceed the yield on longer-term government bonds, has historically preceded a U.S. recession. This indicator has been accurate in predicting all eight recessions since 196…