标题： 全球腐败感知聚类 显示英文标题

标题： Worldwide clustering of the corruption perception

摘要： 我们检查了134个国家腐败感知的可能聚类结构。 使用平均链接聚类，我们揭示了国家之间关系中的明确层次结构。 识别出四个主要聚类，它们表明全球各国可以根据其腐败感知很好地分开。 此外，我们发现聚类内部腐败水平与发展阶段之间存在很强的联系。 根据腐败程度对国家进行排序，与根据成员国人均国内生产总值衡量的经济表现进行排序完全一致。 据我们所知，这项研究是第一个将层次聚类方法应用于腐败具体案例的应用研究。 显示英文摘要

摘要： We inspect a possible clustering structure of the corruption perception among 134 countries. Using the average linkage clustering, we uncover a well-defined hierarchy in the relationships among countries. Four main clusters are identified and they suggest that countries worldwide can be quite well separated according to their perception of corruption. Moreover, we find a strong connection between corruption levels and a stage of development inside the clusters. The ranking of countries according to their corruption perfectly copies the ranking according to the economic performance measured by the gross domestic product per capita of the member states. To the best of our knowledge, this study is the first one to present an application of hierarchical and clustering methods to the specific case of corruption.