For purposes of decision we assume the following facts alleged in the amended complaint 4 to be true. Petitioners allege that, beginning in early 1967, respondent wholesalers secretly agreed, in order to eliminate competition among themselves, that as of December 1967 they would sell to retailers only if payment were made in advance or upon delivery. Prior to the agreement, the wholesalers had extended credit without interest up to the 30- and 42-day limits permitted by state law. 5 According to the petition, prior to the agreement wholesalers had competed with each other with respect [446 U.S. 643, 645] to trade credit, and the credit terms for individual retailers had varied substantially. 6 After entering into the agreement, respondents uniformly refused to extend any credit at all. - See more at: http://caselaw.findlaw.com/us-supreme-court/446/643.html#sthash.hdQNqgUh.dpuf