Seoul: Interest rates are often described as the economy's thermostat. This time, they resemble something closer to an emergency generator. The Bank of Korea's decision last week to raise its benchmark rate to 2.75 percent, its first increase in 3 1/2 years, is an attempt to contain inflation imported through oil prices, geopolitical conflict, and a weakened currency.
According to Yonhap News Agency, the move by the central bank is seen as necessary but painful for an economy that, despite strong export numbers, is built on weak foundations. Consumer prices have exceeded 3 percent for two consecutive months, primarily driven by surging energy costs following turmoil in the Middle East that disrupted supply chains. The won's persistent weakness, trading above 1,500 against the US dollar for much of the past month, exacerbates the situation. With US interest rates remaining high, further widening the gap could lead to capital outflows, a weaker currency, and even greater inflation.
This inflationary pressure is unusual as interest rates alone cannot rectify disrupted supply chains, lower oil prices, or strengthen the won overnight. The central bank's efforts to contain inflation are challenged by factors beyond its control. While exports have hit record levels due to a semiconductor boom, nearly 2,000 trillion won in household debt reveals financial strain among borrowers, particularly small businesses.
The Bank of Korea estimates a single 25-basis-point increase will add approximately 1.8 trillion won in annual interest expenses for self-employed borrowers. Delinquency rates among these borrowers have reached their highest level in a decade. Mortgage holders and companies, many of which cannot cover their interest expenses through operating profits, also face rising repayment costs.
Economic policy presents another challenge. While the central bank is withdrawing liquidity, the Lee Jae Myung administration plans an expansionary budget exceeding 800 trillion won for the next year, potentially financed by semiconductor tax revenue. This fiscal approach may sustain inflationary pressure, forcing the central bank to maintain higher interest rates.
Fiscal policy should focus on debt restructuring for distressed borrowers and targeted measures to complement monetary tightening. Utilizing windfall semiconductor tax revenue to strengthen public finances and support structural reform could prove more beneficial.
Higher interest rates signify a return to economic gravity after years of low-cost borrowing. Korea's success in navigating this tightening cycle will be judged by its ability to restore price stability and align fiscal and monetary policies effectively. Failing to do so may result in higher rates eroding the financial stability of households and businesses least equipped to handle them.