Citi's Buiter Says U.S. Won't See Sustained 3% Growth

Treasury Secretary Mnuchin predicts a 3% economic growth for the next 4-5 years, a view not widely shared by economists who cite full employment and lack of supply-side dynamism as barriers. The discussion also covers the impact of net exports and tariffs on GDP, with skepticism about the accuracy of short-term data. Future growth is linked to productivity and capital accumulation.

What factors are mentioned as potentially limiting the US economy's growth to 3%?

What does the speaker suggest about the accuracy of quarterly data points in measuring economic trends?