Chapel Hill Expert Survey (CHES)

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The Chapel Hill expert surveys estimate party positioning on European integration, ideology and policy issues for national parties in a variety of European countries. The first survey was conducted in 1999, with subsequent waves in 2002, 2006, 2010. The number of countries increased from 14 Western European countries in 1999 to 24 current or prospective EU members in 2006 and 2010, and the number of national parties from 143 to 237. The 2010 survey also includes parties in Croatia, Norway, Switzerland, and Turkey. Separate surveys were conducted in the Balkan candidate countries. Common to all surveys are questions on parties' general position on European integration, several EU policies, general left/right, economic left/right, and social left/right. Later surveys also contain questions on non-EU policy issues, such as immigration, redistribution, decentralization, and environmental policy.

With thanks to the European Union Center for Excellence, University of North Carolina in Chapel Hill, and the Chair in Multilevel Governance at the VU University Amsterdam for support.

The CHES team also thanks our hundreds of generous experts, without whom we could not produce these data.

1999-2010 Chapel Hill Expert Survey (CHES) trend file

2010 Chapel Hill expert survey

2006 Chapel Hill expert survey

2002 Chapel Hill expert survey

1999 Chapel Hill expert survey

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2007 Candidate countries survey

In 2007, we also conducted a mini-survey in five European Union candidate countries: Bosnia-Herzegovina, Croatia, Macedonia, Serbia, and Turkey.

Ray-Marks-Steenbergen survey

An earlier survey was conducted by Leonard Ray for 1984, 1988, 1992, and 1996. The combined Ray-Marks-Steenbergen dataset merges the 1999 Chapel Hill survey with the Ray dataset. The original variable names and party ids in the Ray data are relabeled to make them consistent with the Chapel Hill survey. Researchers can combine this dataset with the 2002, 2006, and 2010 data. The original Ray dataset is available on Ray's website.

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For questions, contact Ryan Bakker.

This page was last updated on: 10 April 2014.