Diversity of citizenship：跨州案件 A kind of jurisdiction giving a federal court the power to hear a case based upon the fact that（a ）the parties to the litigation are from different states， and （b）the mount of money involved exceeds the amount usually dollars 10，000.Pursuant to Article three， section 2 of the U.S. Constitution， and the federal Judicial Code. 联邦法院管辖的案件需同时满足两个条件： 1）双方当事人分数不同的州； 2）标的超过法定金额。 这是为了减少跨州案件的当事人在外州遭受歧视。
