[rlpb]

> Clearly, those companies must price for their home (and much larger) market.

I don't think that's true. They can be expected to price to maximise revenue and that can mean pricing differently in different markets. With software licensing that's relatively easy to do since the marginal cost is near zero and arbitrage across markets can be blocked. Just make geographical restriction a term in the license agreement.

Therefore, I don't think that any need to price for their home market should affect the UK market. If prices are high, it's because their costs are higher or it's because the competitive force isn't strong enough.

See also: https://en.wikipedia.org/wiki/Price_discrimination