This is also called a buy phase
Buy low, sell high
Trumps policies are expected to pass costs on to consumers but have the benefit of maintaining production and development internally which should long term keep more money inside the USA, hardening supply lines against foreign influence. Given that China is openly campaigning for war on Taiwan by 2027 latest, and they're responsible for close to 80% of critical imports to US minerals, this puts the US in a predicament which Trump (probably not on purpose tbh, I won't give him the credit) is preparing for.
Tariffs on raw metals and minerals have proven effective since his first term with significant improvements in domestic refinement.
-"Tardif pass-through and implications for domestic markets: Evidence from US steel imports" Ahmad et al. (2023).
This isn't shared by other aspects of the supply network though like finished products or more complicated manufacturing because market instability halts investment in those areas, so no development actually increases in the US and prices just increase. This is a fatal flaw in the tariff calculus that is hurting trade and the economy. Manufacturing takes years to develop and adapt, and no one will leap on that kind of investment without clear assurances.
