可以写进 IB、A-Level、AP、IGCSE 经济学论文的真实新闻案例：供给冲击、供求与价格、成本推动型通胀
一艘油轮在驶出霍尔木兹海峡时被不明发射物击中，该办公室的周报还显示该海峡船舶单周通航量下降。
霍尔木兹海峡是重要的石油运输通道，通航量下降意味着原油运输受阻、供给减少。学生可以画出供给曲线左移：在需求不变时，供给减少推高油价，并沿产业链传导为成本上升，形成成本推动型通胀。
影响大小取决于通航量下降持续多久、是否有替代航线或库存缓冲；若只是短期扰动，价格冲击可能很快消退，长期影响有限。
结合该事件，分析重要航运通道受阻如何通过供给冲击影响油价与通货膨胀，并讨论其短期与长期影响。
A tanker was hit by an unidentified projectile while leaving the Strait of Hormuz and continued to its next port, while the same office's weekly report showed a fall in weekly vessel transits through the strait.
The Strait of Hormuz is a key oil transit route, so fewer transits mean oil shipments are disrupted and supply falls. Students can draw a leftward shift of the supply curve: with demand unchanged, reduced supply raises the oil price, which then feeds through the supply chain as higher costs and cost-push inflation.
The size of the effect depends on how long the fall in transits lasts and whether alternative routes or inventories cushion it; a short-lived disruption may fade quickly, limiting long-run effects.
Using this event, analyse how disruption to a key shipping route can affect oil prices and inflation through a supply shock, and discuss the short-run versus long-run effects.
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