Version 8 (Apr 2018)

Versions respond to changes to the dataset for V-Dem variables (A, B, C, D), including new variables, new indices, corrections to existing variables, and new iterations of the measurement model.

 

Codebook.png

Download the V-Dem Codebook v8 by clicking on the icon to the left. Please note that all variables that V-Dem is compiling are included in the Codebook.

Suggested citation: Coppedge, Michael, John Gerring, Carl Henrik Knutsen, Staan I. Lindberg, Svend-Erik Skaaning, Jan Teorell, David Altman, Michael Bernhard, Agnes Cornell, M. Steven Fish, Haakon Gjerløw, Adam Glynn, Allen Hicken, Joshua Krusell, Anna Lührmann, Kyle L. Marquardt, Kelly McMann, Valeriya Mechkova, Moa Olin, Pamela Paxton, Daniel Pemstein, Brigitte Seim, Rachel Sigman, Jerey Staton, Aksel Sundtröm, Eitan Tzelgov, Luca Uberti, Yi-ting Wang, Tore Wig, and Daniel Ziblatt. 2018. "V-Dem Codebook v8" Varieties of Democracy (V-Dem) Project.

 
Org.png

Download the Organization and Management v8 by clicking on the icon to the left.

Document includes a brief overview of the Varieties of Democracy (V-Dem) project – the team, the web site, outreach to the international community, funding, progress to date, and sustainability.

Suggested citation: Coppedge, Michael, John Gerring, Carl Henrik Knutsen, Staan I. Lindberg, Svend-Erik Skaaning, Jan Teorell, Joshua Krusell, Moa Olin, Josefine Pernes, Johannes von Römer, and Natalia Stepanova. 2018. "V-Dem Organization and Management v8" Varieties of Democracy (V-Dem) Project.

 
 
Methods.png

Download the Methodolgy v8 by clicking on the icon to the left. Part I sets forth the V-Dem conceptual scheme. Part II discusses the process of data collection. Part III describes the measurement model along with efforts to identify and correct errors.

Suggested citation: Coppedge, Michael, John Gerring, Carl Henrik Knutsen, Staan I. Lindberg, Svend-Erik Skaaning, Jan Teorell, Joshua Krusell, Kyle L. Marquardt, Daniel Pemstein, Josefine Pernes, Natalia Stepanova, Eitan Tzelgov, Yi-ting Wang, Juraj Medzihorsky, and Steven Wilson. 2018. "V-Dem Methodology v8" Varieties of Democracy (V-Dem) Project.

 
 
Country Units.png

Download the Country Coding Units v8 by clicking on the icon to the left.

This document lists (a) every country in the eventual V-Dem database, (b) the years for which we have collect data or plan to collect data (in parentheses next to the entry); (c) the polities that comprise each country’s 20th century history (even if falling outside the time-period that we wish to code); and (d) the borders of each country (wherever this might be unclear).

Suggested citation: Coppedge, Michael, John Gerring, Carl Henrik Knutsen, Staan I. Lindberg, Svend-Erik Skaaning, Jan Teorell, Vlad Ciobanu, and Moa Olin. 2018. "V-Dem Country Coding Units v8" Varieties of Democracy (V-Dem) Project.

 

 

Structure.png

Download the "Structure of V-Dem Indices, Components, and Indicators" by clicking on the icon to the left. 

 

If a variable(s) drawn from the V-Dem database plays an important role in your project (published or unpublished) this should be publicly acknowledged. Suggested citation(s) are offered at the end of each entry.