In this week’s Letter, we take another pulse on recent key developments relating to, and affecting, Asia. The week has once again begun on a hopeful note, following reports that the US will guide neutral vessels through the Strait of Hormuz, signalling a partial easing of trade flows through the waterway. Asian markets, including South Korea and Taiwan, were further buoyed by persistent AI-related optimism (chart 1). A full tally of central bank decisions since February highlights a growing divergence across the region. While most central banks have opted to hold back on tightening, a subset has already moved to raise policy rates in response to inflation pressures stemming from higher oil prices (chart 2). A cross-country comparison of consumer inflation reinforces this divergence, with more pronounced CPI increases in economies such as Australia and the Philippines, where central banks have recently hiked rates (chart 3).
In the meantime, amid the absence of oil flows through the Strait, many Asian importers have begun sourcing supplies from alternative producers, including the United States (chart 4). At the same time, major oil exporters affected by disruptions in the Strait of Hormuz have been forced to scale back crude production significantly due to storage constraints (chart 5). Looking ahead, attention turns to a three-pronged week featuring regional PMIs, additional central bank decisions (chart 6), and further Q1 GDP releases.
Early-week optimism Asian markets began the week on an optimistic footing, supported by developments in the Middle East. Reports that the US will guide neutral vessels through the Strait of Hormuz have lifted expectations of a partial resumption in trade flows through what has been a severely constrained passage. That said, while any reopening of oil and broader shipping routes is a key factor in easing the supply shock stemming from the conflict, the situation remains far from resolved. Uncertainty persists over both the scale and durability of any recovery in shipping activity. Elevated tensions between the US and Iran—underscored by exchanges of fire as US forces escorted vessels through the waterway on Monday—continue to leave the outlook vulnerable to renewed disruption. Nonetheless, ongoing AI-related optimism has continued to underpin equity markets. Asia stands to benefit disproportionately given its central role in the global AI supply chain, helping keep equity prices elevated across key markets such as South Korea and Taiwan (chart 1).



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