How successful have the Nordic Agrarian-Centre Parties been in transforming themselves from class parties to catchall parties drawing significant support from voters engaged in the non-primary sectors of the economy? Using case studies from five comparable countries, David Arter provides an insightful account of an historic group of parties who still wield distinctive strength in the Nordic region. This detailed profile, the first ever in English, makes a unique contribution to the topical issues of party adaptation and institutional modernization.