Publikationsliste KOPS

A central assumption of deliberative theory is that political preferences are endogenous to decision-making processes in which they are transformed by communicative interaction. We identify discursiveness and coordination of interaction as central determinants of preference change and develop a typology of political modes of interaction that affect the likelihood of preference change differently. These properties are in turn influenced by institutional characteristics of the fora in which communicative interaction takes place. To illustrate our approach empirically we present a comparative analysis of two extreme modes of interaction, ‘debate’ and ‘deliberation’, providing a case study of a parliamentary debate and a citizen conference on the same conflict: the import of embryonic stem cells in Germany. We assess the discursiveness and coordination as well as the amount of preference transformation in both forums.

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Compulsory voting (CV) undoubtedly raises electoral turnout. Yet does it also affect individual party choices and aggregate election outcomes? Previous studies have focused on partisan or 'directional' effects of CV in favour of, for example, social-democratic or anti-establishment parties. These effects are usually small, however. Using survey data from the Belgian General Elections Study, this article finds that CV primarily affects the consistency, rather than the direction, of party choices. In particular, the analyses suggest that CV compels a substantial share of uninterested and less knowledgeable voters to the polls. These voters, in turn, cast votes that are clearly less consistent with their own political preferences than those of the more informed and motivated voluntary voters. Claims that CV promotes equal representation of political interests are therefore questionable.

We explore the impact of institutional design on the distribution of changes in outputs of governmental processes in the United States, Belgium, and Denmark. Using comprehensive indicators of governmental actions over several decades, we show that in each country the level of institutional friction increases as we look at processes further along the policy cycle. Assessing multiple policymaking institutions in each country allows us to control for the nature of the policy inputs, as all the institutions we consider cover the full range of social and political issues in the country. We find that all distributions exhibit high kurtosis values, significantly higher than the Normal distribution which would be expected if changes in government attention and activities were proportionate to changes in social inputs. Further, in each country, those institutions that impose higher decision-making costs show progressively higher kurtosis values. The results suggest general patterns that we hypothesize to be related to boundedly rational behavior in a complex social environment.