以总理督促对伊“动手”，特朗普回应！霍尔木兹海峡突发，一艘超级油轮触雷！油价开盘大跌

English version

What happened

The report says a supertanker struck a mine in the Strait of Hormuz, while Israel's prime minister urged action against Iran and Trump responded; oil prices fell sharply at the open after the news.

The economics

The Strait of Hormuz is a key oil transport route, so a tanker hitting a mine and rising regional tension raise fears of disrupted oil supply, which is a supply shock: reduced supply or higher supply risk tends to push prices up. Yet in this case oil fell at the open, showing that price is set by supply and demand together and that markets may have focused more on demand or other news.

Evaluation

The price effect of a supply shock depends on how far markets expect supply to be actually disrupted and on the strength of demand; short-run moves can also be amplified by expectations and speculation rather than reflecting real supply and demand.

Practice question

Using supply and demand analysis, explain how the Hormuz tanker incident could affect world oil prices, and why prices fell at the open in this case.