Does AI investment push up long-term interest rates?
Core argument: Combined net income at Alphabet, Amazon, Meta and Microsoft rose 73% to $91 billion in the second quarter from two years earlier, while their free cash flow fell 30% to $40 billion, according to FactSet data.
From 2016 through 2023, free cash flow and net earnings of Alphabet, Amazon, Meta and Microsoft grew roughly in tandem. But since 2023, the two have diverged. The four companies’ combined net income is up 73%, to $91 billion, in the second quarter from two years earlier, while free cash flow is down 30% to $40 billion, according to FactSet data. Between [the] crisis and Covid-19, these companies were generating five to eight times as much cash from operations as they invested, and that spare cash was recycled back into the financial system. It helped hold down long-term interest rates amid high federal deficits, as did inflation below the Federal Reserve’s 2% target and the Fed buying bonds. Today, government deficits are even larger, inflation is above 2% and the Fed has been shrinking its bondholdings. Meanwhile, corporations face steep investment needs to exploit AI and reshore production to avoid tariffs. Jason Thomas [head of research at Carlyle Group] estimates that since 2020, the companies’ cumulative free cash flow has been 78% lower, relative to GDP, than in the equivalent period following 2009.




