Bank of Korea Hikes Rates, Casting Doubt on Fed’s AI-Inflation View

Seoul raised its key interest rate for the first time in more than three years, signaling concern that rapid investment in artificial intelligence could lift prices at home even as some U.S. officials play down that risk.

Bank of Korea Governor Shin Hyun-song announced a quarter-point increase Thursday, pushing the policy rate to 2 3/4 percent — the central bank’s first move since January 2023. The decision breaks a long pause and marks a clear policy divergence from Federal Reserve chair Jerome Powell’s successor, who has argued AI spending need not drive U.S. inflation.

Korea’s economy, just under $2 trillion and heavily tied to technology exports, makes the country especially sensitive to shifts in global demand and capital flows. Local manufacturers and exporters, as well as consumers facing higher borrowing costs, are expected to feel the immediate effects of tighter money.

A Seoul-based economist I spoke with said the BOK is betting that surges in AI-related equipment and wages could translate into domestic price pressures, even if similar dynamics are muted in the United States. If that assessment proves correct, other small, open economies may reassess their stances.

Markets will watch incoming data and the central bank’s next statements for clues about how persistent the tightening will be. For now, households and firms in Korea face slightly costlier credit as policymakers try to head off inflation before it gains momentum.