New Zealand Magic Millions Ltd v Wrightson Bloodstock Ltd - [1990] 1 NZLR 731

Commercial law — Commerce Act — Dominant position in market — Defendant had virtual monopoly of New Zealand auctions of thoroughbred yearling horses — Plaintiff sought to enter market and defendant set auction dates to clash with those of plaintiff — Plaintiff sought injunction to prevent clash alleging breach of s 36 of Commerce Act — Whether the market included Australia and was limited to yearlings — Whether defendant had dominant position in market — Whether defendant had used its position to prevent or deter competition — Whether injunction should be granted — Whether injunction should be perpetual — Commerce Act 1986, ss 3, 4, 27, 36 and 88.