External data for Portugal

Parties in Chapel Hill expert survey series

ID Name English name ParlGov parties
1201 CDU Coligação Democrática Unitária Unitarian Democratic Coalition CDU
1202 CDS/PP, Centro Democrático e Social/ Partido Popular Democratic and Social Center/People's  Party CDS-PP
1205 PS Partido Socialista Socialist Party PS
1206 PPD/PSD Partido Popular Democrático/Partido Social Democrata Democratic People's Party/ Social Democratic Party PSD
1208 BE Bloco de Esquerda Left Bloc BE

Reference

Chapel Hill expert survey series (CHESS): Hooghe, Liesbet et al. 2010. “Reliability and validity of the 2002 and 2006 Chapel Hill expert surveys on party positioning.” European Journal of Political Research 49(5):687–703. Steenbergen, Marco, and Gary Marks. 2007. “Evaluating expert judgments.” European Journal of Political Research 46(3):347–366. Ryan Bakker, Catherine de Vries, Erica Edwards, Liesbet Hooghe, Seth Jolly, Gary Marks, Jonathan Polk, Jan Rovny, Marco Steenbergen, and Milada Vachudova. 2012. "Measuring Party Positions in Europe: The Chapel Hill Expert Survey Trend File, 1999-2010.” Party Politics (forthcoming).

External data    http://www.unc.edu/~gwmarks/data_pp.php