exclusivity
From Longman Business Dictionaryexclusivityex‧clu‧siv‧i‧ty /ˌekskluːˈsɪvəti/ noun [uncountable]1the fact that a place or product is so expensive that not many people can afford to buy itPorsche highlighted its exclusivity by aiming at the high end of the luxury-car segment.2the fact of having an exclusive agreement, contract, or rightThe manufacturer will have seven-year marketing exclusivity for the drug.3when a business that is in the process of being bought agrees not to speak to any other person or company that may be interested in buying it