As a result, in sports where the inherent demands limits its athletes to an infrequent competition schedule, there existed a very real possibility that unless a trip to the U.K. proved particularly fruitful, it could yield more in U.K. tax than it did in winnings.

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Allowing firms to use trademark law as a trade barrier limits competition, especially on price, damaging consumer interests.

ECONOMIST: Parallel imports

Yet this broadening also suggests limits to their potential, since it is bringing them up against stronger competition.

ECONOMIST: We have lift-off | The