Supplemental Material, supplementary_material - Party novelty and congruence: A new approach to measuring party change and volatility Allan Sikk Philipp Köker 10.25384/SAGE.10278113.v1 https://sage.figshare.com/articles/journal_contribution/Supplemental_Material_supplementary_material_-_Party_novelty_and_congruence_A_new_approach_to_measuring_party_change_and_volatility/10278113 <p>Supplemental Material, supplementary_material for Party novelty and congruence: A new approach to measuring party change and volatility by Allan Sikk and Philipp Köker in Party Politics</p> 2019-11-09 01:06:11 electoral coalitions new parties party change splits and mergers volatility