“…On the same line, Huber et al (2005) hold that the characteristics of the political context, such as the nature of the competition between parties, may influence individuals propensity to form party attachment more than changes in the social structure do. Moreover, Zelle (1995) shows that volatility is determined by the degree of political dissatisfaction in the electorate, which is in turn likely to be caused by macro stimuli such as historic events, economic conditions, or the like, rather than by CM. Finally, change in participation has been explained as a logical consequence of the crisis in the structure of mass-bureaucratic parties in all Western countries (Katz and Mair, 1995;Ignazi, 2012).…”