The US government regulated critical parts of the supply chain of raw materials and preproducts in order to ensure that US manufacturers have no sourcing proble

The US government regulated critical parts of the supply chain of raw materials and preproducts in order to ensure that US manufacturers have no sourcing problems. It then compelled the manufacturers into exclusively servicing the US purchase contracts first before fulfilling competing contracts from other global buyers with any of the finished product produced on US territory. I'd call that quite a lot of "market management". But as everyone could see it resulted in the fastest vaccination ramp-up worldwide (excluding Israel, which was a bit faster, but is also much smaller than the US and which had its own way to get "preferred" access to vaccine produced in the EU).