Valid and reliable estimates of the policy preferences of political parties' supporters are essential for the study of political representation. However, such estimates are not directly available... Show moreValid and reliable estimates of the policy preferences of political parties' supporters are essential for the study of political representation. However, such estimates are not directly available from standard surveys of public opinion, which are typically representative by design only at the national level and rarely ask questions about public support for specific policies. In this article, we explore the possibility to use data from voting advice applications (VAA) to estimate the policy preferences of party supporters. To do that, first, we identify 10 questions on preferences towards issues of public policy that were asked around the same time and with similar wording in traditional surveys of public opinion and in VAAs fielded in Germany and in the Netherlands. Then we compare the VAA data disaggregated by political affiliation of the respondents to the survey data adjusted via multilevel regression modeling with poststratification (MRP). We find strong positive correlations between the estimates derived from both methods, especially after weighting the VAA data. Yet, point estimates are not always very close, and the match is sensitive to the treatment of neutral and ‘don't know’ answers. Overall, our results bode well for the validity of using VAA data in empirical research on political representation. Show less
Political parties take positions and make decisions on many policies that directly influence important parts of the lives of their voters. These policies include issues like raising the retirement... Show morePolitical parties take positions and make decisions on many policies that directly influence important parts of the lives of their voters. These policies include issues like raising the retirement age, lending money to large companies that face bankruptcy, or deploying soldiers to Afghanistan. But do political parties take into account the policy preferences of the general public and their own voters when making such decisions? And to what extent do interest groups influence political parties’ positions and decisions on these policy issues? This dissertation studies these important questions across a range of wealthy, Northwestern European democracies with strong democratic credentials, covering dozens of political parties, policy issues and even more interest groups and other policy advocates. Show less
Political parties are a crucial link between the public and policy outcomes. However, few studies have considered who political parties are responsive to when they take positions on specific policy... Show morePolitical parties are a crucial link between the public and policy outcomes. However, few studies have considered who political parties are responsive to when they take positions on specific policy proposals. This article explores the links between public opinion and the policy positions of political parties on 102 specific policy proposals in Germany using a novel application of multilevel regression with poststratification to estimate the policy preferences of party supporters. While there is a link between general public preferences and the positions of political parties, this connection weakens considerably once political parties are in government. In fact, the study shows that the link between party positions and general public opinion is severed once parties enter government, whereas it is only weakened in the case of party supporters. Finally, the article finds mixed evidence for differences between niche parties and mainstream parties. Show less
