Research index·Book chapterIntroductionHeidenreich1 Jan 2022DOI10.1007/978-3-031-12630-7_1Book chapterIntroductionHeidenreich · 2022 · SubscriptionDOI10.1007/978-3-031-12630-7_1ReadRead at the publisherSaveCiteAdd to literature reviewPaywalledThe full text is at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionCitations46ReferencesTopicsCohesion (chemistry)InequalitySocial inequalityMember statesPolitical scienceSocial integrationEconomic geographyEconomic systemRelated papersMoreDetailsPublished, issue, languageSuggest a correction or report