"Market rates, people, that's what Starbucks are paying for their roasted coffee beans."
Totally wide of the mark, nothing to do with beans at all.
Starbucks pay 6% of sales to, er, Starbucks, for use of their brand name.
This ain't about beans.
They have an entirely arbitrary fee that ensures that Starbucks UK makes a loss, while sending £millions in untaxed profits royalties abroad.
If Costa were able to divert an arbitrary percentage of their sales overseas, they wouldn't pay any taxes either.
But they don't, they are owned by Whitbread, a UK firm, and sending 6% from Whitbread to Whitbread would still result in UK taxes being paid. (Of course it's likely that Whitbread could set up complex offshore structures to avoid this, but they haven't, and I personally am grateful that they do not.)
The worldwide taxation system is complex and essentially unreformable.
For this reason, it is absolutely the correct response when a company selling a discretionary consumer product is on the one hand spouting off about 'fair trade' yet with the other busily avoiding taxes in the UK, to say "I will not spend money in this restaurant."
Telling people to complain to their MP is simply absurd.
Veeeeery simple folks. Don't like Starbucks business practices? Don't shop there.
But please don't kid ourselves that we can change the entire world order.