Dataset of New Parties and Party System Innovation in Western Europe since 1945

This dataset identifies and lists all the new parties emerged in Western Europe since 1945 and provides data about party system innovation, defined as the aggregate level of...本数据集识别并罗列了1945年以来西欧地区出现的全部新兴政党，并提供了政党制度创新相关数据，该概念被定义为总体层面的……