The Bank of Korea has raised its main interest rate by a quarter of a percentage point to 2.75%, its first rate rise since January 2023, moving to tackle inflation that has climbed back above its target.
The increase, reported on July 16, lifts the bank's seven-day repurchase rate from 2.50%. It followed months in which policymakers had signalled that tightening was coming, and it had been widely expected: in one survey, all but one of the economists polled forecast the move.
Why the bank acted
South Korea's consumer prices were rising at around 3.1% a year, comfortably above the central bank's 2% goal. A large part of that pressure has come from outside the country. Global oil prices have surged as the conflict between the United States and Iran has disrupted shipping through the Strait of Hormuz, feeding through to energy costs in an economy that imports most of its fuel. A weaker Korean won has compounded the problem, making imported goods and raw materials more expensive.
Raising interest rates is a central bank's main tool against inflation. Higher rates make borrowing dearer, for mortgages, car loans and business investment alike, which is meant to cool spending and demand and, in time, ease price rises. The cost is that tighter policy can also slow growth and hiring, a trade-off the Bank of Korea is now navigating.
Against the global grain
The decision sets South Korea apart from much of the world. Many major central banks have been cutting rates over the past year or so as their own inflation has eased, making the Bank of Korea one of the few still tightening. Economists expect it may not be finished: a further increase, to 3%, is widely anticipated before the end of the year, with some forecasting more into 2027.
Korean shares fell on the day, though analysts noted the drop was driven as much by a slide in technology stocks and jitters over the Middle East as by the rate decision itself. A stronger currency, which higher rates can encourage, would be a mixed blessing for South Korea's big exporters, who rely on competitive prices abroad.
For households and businesses, the immediate effect is higher borrowing costs at a time when many are already feeling the squeeze from rising prices. The bank is betting that a firmer stance now will bring inflation back under control, even at the risk of a slower economy, a familiar dilemma for policymakers around the world as the fallout from the Gulf conflict ripples through global markets.
