Commerce Commission v Caltex New Zealand Ltd - [1998] 2 NZLR 78

Commercial law — Commerce Act — Three major wholesale petrol suppliers agreed to simultaneously withdraw free car washes for petrol purchases exceeding $20 at retail petrol stations in Auckland — Whether the agreement was capable of having the purpose or likely effect of substantially lessening competition in the relevant market — Commerce Act 1986, ss 27 and 30.