Japan is the country that specializes in all those fields
I think it’s the third one explanation : hope this helps :)
I believe the answer is: Price floor
Price floor refers to a form of Government regulation that put a limit on how cheap a certain product can be sold in the market.
Imposing price floor will guarantee a certain level of margin for the sellers and will increase their average profit.
Advocacy is the act of supporting a cause or decision to achieve something you want.