[LiamMcCalloway]

Countries can unilaterally have taxes based on the share of total company profit generated in the country, rather than just profit in the country.

[thomasahle]

That doesn't prevent companies from moving all profit generation out of all countries but the lowest taxed.

[Maarten88]

Good luck Apple selling iPhones in Jersey. They'll need to sell everyone hundreds of iPhone X's there to keep profits up.