After Warsh takes office as Federal Reserve chair, his first test is framed as a choice between two historical interpretations of the current AI boom: is it closer to a 1996-style productivity dividend, or to a 1999-style episode of demand overheating? The answer matters because the two readings point to different policy responses. A productivity-driven boom would support holding policy steady, while a demand-overheating reading would require earlier rate increases.
Greenspan’s Two Historical Lessons as the Reference Point
The article compares the question with two episodes from the Greenspan era. The 1996 comparison focuses on the room created by productivity gains, while the 1999 comparison is associated with stronger demand and pressure for policy tightening. Warsh’s challenge is to distinguish whether the AI cycle is improving supply conditions, pushing demand higher, or doing both at the same time.
That judgment will shape the inflation path, the pace of monetary policy and the Federal Reserve’s credibility. The article emphasizes the policy dilemma created by AI’s dual effect on supply and demand: if AI is treated mainly as a productivity dividend, the policy stance would lean toward patience; if it is treated as demand overheating, earlier rate hikes would become part of the policy debate.

