That is not true. Markets are moved by traders not economists. Professional traders have a very skeptical view of economists, because economists are simply wrong so often about the future. Economists from the world bank and such institutions are usually on the wrong side of forecasting for instance.
For instance Scott Bessent opinion:
"I will take the market-based indicators over the so-called 'experts' all the time! That’s how I made my 35-year career, was listening to the market."
The traders are all operating within the windows established by the policy choices of economists using fake money generated by economists to satisfy their own invented metrics.
And traders are not themselves predicting the future as you put it, but they are predicting the future sentiment of other traders.
