Singapore monetary policy tightens again as oil risks lift inflation concern

Singapore monetary policy was tightened for the second meeting in a row on Monday, as the Monetary Authority of Singapore moved to guard against inflation risks linked to higher oil prices. The central bank said it would raise the pace at which the Singapore dollar’s nominal effective exchange rate policy band appreciates, while leaving the band’s width and centre unchanged.

The MAS described the move as a small adjustment, saying the increase in the rate of appreciation would be “very slightly” higher and smaller than the tightening announced in April. In its statement, the authority said the latest decision “builds on the tightening in April” amid “continued heightened uncertainty.”

The decision comes while domestic inflation remains relatively contained. Singapore’s core inflation rate, which excludes accommodation and private transport costs, rose to 1.6% in June from 1.4% in May, according to the figures cited by the MAS. That reading sits near the lower end of the central bank’s 1.5% to 2.5% forecast range for the year. Headline inflation was 1.9%.

How does Singapore monetary policy work?

Singapore uses the exchange rate as its main monetary policy tool rather than setting a benchmark interest rate. The MAS manages the Singapore dollar against a trade-weighted basket of currencies inside an undisclosed band, allowing the currency’s path to influence imported prices and medium-term inflation.

Under this system, a steeper appreciation path can help dampen inflation by making imported goods and services cheaper in Singapore dollar terms. That mechanism is especially relevant for an open economy exposed to global energy and food costs, although the pass-through to households and firms can occur with a delay.

Why did MAS tighten policy again?

The MAS move reflects concern that the renewed rise in oil prices could feed into broader price pressures even though recent inflation readings have remained subdued. The central bank did not change the band’s width, which would have altered the permitted range of exchange-rate movement, or the level at which the band is centred.

BMI, a FitchSolutions company, said transport fuel prices had risen quickly since the start of the U.S.-Iran conflict. It added that softer services inflation, especially in health care, communications and education, had offset much of the upward pressure on consumer prices.

BMI said imported-cost pressures tend to affect broader consumer prices only after a delay, and that it still expects inflation to rise in the coming months. That assessment points to the main risk facing policymakers: external price shocks can reach Singapore even when local demand conditions are not generating strong inflation.

The latest tightening keeps the MAS on a cautious path after its April move. By choosing a smaller adjustment and leaving the band’s other settings unchanged, the authority signalled a preference for a measured response rather than a broad reset of policy.

For investors and companies, the decision underscores the role of the Singapore dollar in the country’s inflation framework. It also places energy-market volatility and geopolitical risk at the centre of the policy outlook, even as current inflation remains near the bottom of the MAS forecast range.

This story draws on original reporting from CNBC.