Version 11.1 (Mar 2021)

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.

Note: For v11, there was a mistake in aggregating a number of A and A* variables from country-date to country-year by using the wrong aggregation method, most often using maximum instead of last or last instead of maximum per country-year. Most indices were not affected by this as they get calculated using country-date inputs. The following indices were affected and were recalculated for v11.1, the number of changed observations in comparison to v11 are in parenthesis: v2x_horacc (all), v2x_accountability (all), v2x_veracc (all), v2x_diagacc (all), v2x_divparctrl (45), v2x_feduni (8), v2x_regime (24), v2x_regime_amb (25), v2x_ex_confidence (17), v2x_ex_direlect (8), v2x_ex_hereditary (21), v2x_ex_military (52), v2x_ex_party (27). The affected A and A* variables were re-aggregated using the correct method for v11.1.

Codebook v11.1.png

Download the V-Dem Codebook v11.1 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, Staffan I. Lindberg, Jan Teorell, David Altman, Michael Bernhard, Agnes Cornell, M. Steven Fish, Lisa Gastaldi, Haakon Gjerløw, Adam Glynn, Allen Hicken, Anna Lührmann, Seraphine F. Maerz, Kyle L. Marquardt, Kelly McMann, Valeriya Mechkova, Pamela Paxton, Daniel Pemstein, Johannes von Römer, Brigitte Seim, Rachel Sigman, Svend-Erik Skaaning, Jeffrey Staton, Aksel Sundtröm, Eitan Tzelgov, Luca Uberti, Yi-ting Wang, Tore Wig, and Daniel Ziblatt. 2021. "V-Dem Codebook v11.1" Varieties of Democracy (V-Dem) Project.

org & man v11.1.png

Download the Organization and Management v11.1 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, Staffan I. Lindberg, Svend-Erik Skaaning, Jan Teorell, Nazifa Alizada, Lisa Gastaldi, Garry Hindle, Nina Ilchenko, Dafni Kalafati, Josefine Pernes, and Johannes von Römer. 2021. “V-Dem Organization and Management v11.1”. Varieties of Democracy (V-Dem) Project.

Methodology v11.1.png

Download the Methodology v11.1 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, Staffan I. Lindberg, Jan Teorell, Kyle L. Marquardt, Juraj Medzihorsky, Daniel Pemstein, Nazifa Alizada, Lisa Gastaldi, Garry Hin-dle, Josefine Pernes, Johannes von Römer, Eitan Tzelgov, Yi-ting Wang, and Steven Wilson. 2021. “V-Dem Methodology v11.1”. Varieties of Democracy (V-Dem) Project.

country coding units v11.1.png

Download the Country Coding Units v11.1 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, Staffan I. Lindberg, Jan Teorell, and Lisa Gastaldi. 2021. ”V-Dem Country Coding Units v11.1” Varieties of Democracy (V-Dem) Project.

Structure v11.1.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.