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Ryan Bakker, Catherine de Vries, Erica Edwards, Liesbet Hooghe, Seth Jolly, Gary Marks, Jonathan Polk, Jan Rovny, Marco Steenbergen, and Milada Anna Vachudov, “Measuring party positions in Europe: The Chapel Hill expert survey trend file, 1999–2010”
Party Politics January 2015 21: 143-152

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First paragraph:

Causal inference on political competition requires systematic knowledge of the positions that political parties take in a political space. Much scholarly effort has been dedicated to the measurement of party positions by means of manifestos, roll-call data, voter placements and expert judgments. Expert surveys have some notable advantages. They allow researchers to obtain positions for a large number of parties irrespective of their size, parliamentary status, whether they have a manifesto or not, and independent from the electoral cycle (Benoit and Laver, 2006Hooghe et al., 2010Rohrschneider and Whitefield, 2009).

Tables and Figures:

Figure 1. EU-14 mean party family position toward EU.
Figure 2. CEEC mean party family position toward EU.
Figure 3. Left-Right and EU position.
Figure 4. EU-14 Economic left-right, GAL-TAN and EU position.
Figure 5. CEEC Economic left-right GAL-TAN and EU position.
Table 1. Experts and political parties in the 2010 Chapel Hill survey.
Table 2. Descriptve statistics for 2010 CHES.
Table 3. Cross-validating party placements on general left-right scale.
Table 4. Cross-validating party placements on EU positions.
Table 5. Placement correlations.

Last Paragraph:

This research note presents information about trends in party positioning and assesses the validity and reliability of the longest running data collection project compiling expert party placements in the European context. As more researchers use CHES data to examine party competition and political representation (e.g. Adams et al., 2012Bakker et al., 2012Jolly, 2007Karreth et al., 2013van de Wardt, 2012), establishing the validity and reliability of expert placements is of key importance. Our results suggest that CHES data display quite high levels of inter-expert reliability and considerable common structure with different measures. This is good news for scholars aiming to examine the positions of parties on a variety of ideological and policy dimensions in a longitudinal and cross-national perspective.


Last updated Febuary 2015