Dataset Extensions by External Researchers

Left-Right Measures based on Manifesto Project Data

• Left-Right Scores by Franzmann & Kaiser: The Franzmann & Kaiser left-right scores are based on the assumption that left and right differs across time and countries.
• Manifesto Common Space Scores by König, Marbach & Osnabrügge: A sophisticated method developed by König, Marbach & Osnabrügge to calculate parties' left-right scores based on Manifesto Project Data.
• Dynamic State Space Positions by Elff: Another sophisticated method by Martin Elff to calculate left-right positions.
• LR Scores by Jahn: Left-Right scores suggested by Deltef Jahn using a Multi-Dimensional Scaling procedure to get different weights for left and right issues.
• Logratio Scaling suggested by Lowe, Benoit, Mikhaylov & Laver: Logratio scaling proposed by Will Lowe, Ken Benoit and Michael Laver.

Datasets linked to the Manifesto Project Dataset

• partyfacts.org: Party Facts links datasets on political parties and provides an online encyclopedia about parties and their history as recorded in social science datasets. The Manifesto Project's party codes are a core component of this project. Thus Party Facts currently provides links of manifesto parties to more than 60 other datasets.
• Party Government Data Set updated by Seki & Williams: Katsunori Seki and Laron K. Williams updated the Woldendorp, Keman and Budge Party Government Dataset through 2014.
• 'Most Important Problem'-Dataset: A dataset of 832,000 Americans' responses to the "most important problem" question from 1939-2015 composed by Heffington, Beomseob and Williams. Compatible with the MARPOR coding scheme.