Ludovica Ambrosino, Jenny Chan and Silvana Tenreyro

Recent technological advances raise an important question for policymakers: will higher productivity be disinflationary or inflationary? A coming wave of AI-driven productivity growth is often described as a disinflationary tailwind that would allow central banks to hold interest rates lower without reigniting inflationary pressures. Yet faster productivity growth can just as plausibly call for higher, not lower, interest rates. By raising expected future income and the returns to investment, it stimulates consumption and investment today, pushing up the natural rate of interest. Neither view is entirely wrong and our model reconciles the two by showing that the answer depends on the timing, permanence, and sectoral origin of the productivity shock.

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