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Who knows what tomorrow will bring?: Four papers on the prediction of contentious politics
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Peace and Conflict Research. (ViEWS)ORCID iD: 0000-0003-1069-6067
2022 (English)Doctoral thesis, comprehensive summary (Other academic)
Description
Abstract [en]

In the last decade advances in statistics, computing power, and data collection has led to an increased interest in forecasting within the field of peace and conflict research and to the adoption of a wide range of methodological approaches for making such forecasts. By making use of these more powerful forecasting methods researchers have been able to produce accurate predictions, as well as better inferences, of many different types of contentious politics events and to create operational early warning systems for such events. Adapting these forecasting methods to the social world in which politics and political behavior operate, however, is not without its challenges. This dissertation explores a number of methodological issues and advances in peace and conflict research, both inferential and forecasting oriented, through a series of four papers. In the first paper, I explore trends in democratization and autocratization using dynamic simulation. In Paper II, my co-author and I take aim at the difficulty of modeling and making forecasts with data which contains both excess zeroes and extreme-values. We propose an extreme-value and zero-inflated regression model which we use to replicate a study on the effects of UN peacekeepers on violence against civilians. Paper III explores latent variable modeling by using Markov models to make forecasts for escalation and de-escalation of armed conflicts. In the last paper, I investigate the effects of missing data and imputation techniques on the predictive performance of models. The four papers of the dissertation make several contributions to the growing literature of forecasting within peace and conflict research. First, the dissertation contributes to the methodological aspects of conflict forecasting by developing new statistical tools, Paper II, and adapting tools from other fields to different processes of armed conflict and contentious politics, Papers I & III, as well as by evaluating the practical effects of common choices in data pre-processing on the performance of forecasts in Paper IV. Second, the dissertation contributes to new ways of drawing inferences about conflict processes by anchoring the inferences in the latent state of the conflict processes in Papers II & III, and through the comparison of aggregated simulations to the historical record in Paper I. Lastly, the dissertation makes a substantive contribution to the broader field of peace and conflict research in Papers I & II by contributing to the debate on the waves of democratization and autocratization, and by nuancing the impact of UN Peacekeepers on violence against civilians. 

Place, publisher, year, edition, pages
Uppsala University, 2022. , p. 35
Series
Report / Department of Peace and Conflict Research, ISSN 0566-8808 ; 128
National Category
Other Social Sciences not elsewhere specified
Research subject
Peace and Conflict Research
Identifiers
URN: urn:nbn:se:uu:diva-473030ISBN: 978-91-506-2948-4 (print)OAI: oai:DiVA.org:uu-473030DiVA, id: diva2:1653075
Public defence
2022-06-10, Sal IX, Universitetshuset, Biskopsgatan 3, Uppsala, 10:15 (English)
Opponent
Supervisors
Available from: 2022-05-16 Created: 2022-04-20 Last updated: 2022-05-16
List of papers
1. Inexorable Force or Dying Wave?: Long term trends of democratization and the third wave of autocratization
Open this publication in new window or tab >>Inexorable Force or Dying Wave?: Long term trends of democratization and the third wave of autocratization
(English)Manuscript (preprint) (Other academic)
National Category
Other Social Sciences not elsewhere specified Political Science
Research subject
Political Science; Peace and Conflict Research
Identifiers
urn:nbn:se:uu:diva-473027 (URN)
Available from: 2022-04-20 Created: 2022-04-20 Last updated: 2022-04-27Bibliographically approved
2. Inference with extremes: Accounting for Extreme Values in Count Regression Models
Open this publication in new window or tab >>Inference with extremes: Accounting for Extreme Values in Count Regression Models
2024 (English)In: International Studies Quarterly, ISSN 0020-8833, E-ISSN 1468-2478, Vol. 68, no 4, article id sqae137Article in journal (Refereed) Published
Abstract [en]

Processes that occasionally, but not always, produce extreme values are notoriously difficult to model, as a small number of extreme observations may have a large impact on the results. Existing methods for handling extreme values are often arbitrary and leave researchers without guidance regarding this problem. In this paper, we propose an extreme value and zero-inflated negative binomial (EVZINB) regression model, which allows for separate modeling of extreme and nonextreme observations to solve this problem. The EVZINB model offers an elegant solution to modeling data with extreme values and allows researchers to draw additional inferences about both extreme and nonextreme observations. We illustrate the usefulness of the EVZINB model by replicating a study on the effects of the deployment of UN peacekeepers on one-sided violence against civilians.

Place, publisher, year, edition, pages
Oxford University Press, 2024
National Category
Other Social Sciences not elsewhere specified Probability Theory and Statistics
Research subject
Statistics; Peace and Conflict Research
Identifiers
urn:nbn:se:uu:diva-473028 (URN)10.1093/isq/sqae137 (DOI)001351855400001 ()
Funder
EU, Horizon 2020, 2015-AdG 694640 (ViEWS)Riksbankens Jubileumsfond, M21-0002Swedish Research Council, 2017-01175
Available from: 2022-04-20 Created: 2022-04-20 Last updated: 2024-11-27Bibliographically approved
3. Predicting Escalating and De-Escalating Violence in Africa Using Markov Models
Open this publication in new window or tab >>Predicting Escalating and De-Escalating Violence in Africa Using Markov Models
2022 (English)In: International Interactions, ISSN 0305-0629, E-ISSN 1547-7444, Vol. 48, no 4, p. 597-613Article in journal (Refereed) Published
Abstract [en]

This contribution to the ViEWS prediction competition 2020 proposes using Markov modeling to model the change in the logarithm of battle-related deaths between two points in time in a country. The predictions are made using two ensembles of observed and hidden Markov models, where the covariate sets for the ensembles are drawn from the ViEWS country month constituent models. The weights for the individual models in the ensembles were obtained using a genetic algorithm optimizing the fit on the TADDA-score in a calibration set. The weighted ensembles of visible and hidden Markov models outperform the ViEWS prediction competition benchmark models on the TADDA score in the test period of January 2017 to December 2019 for all time steps. Forecasts until March 2021 predict increased violence primarily in Algeria, Libya, Tchad, Niger, and Angola, and decreased or unchanged levels of violence in most of the remaining countries in Africa. An analysis of the model weights in the ensembles shows that the conflict history constituent model provided by ViEWS was dominant in the ensembles.

Place, publisher, year, edition, pages
Routledge, 2022
Keywords
Forecast, Markov model, prediction, state- based violence
National Category
Other Social Sciences not elsewhere specified Probability Theory and Statistics
Research subject
Peace and Conflict Research; Statistics
Identifiers
urn:nbn:se:uu:diva-473026 (URN)10.1080/03050629.2022.2049772 (DOI)000770284500001 ()
Funder
EU, European Research Council, H2020-ERC-2015-AdG 694640Swedish Research Council, 2017-01175
Available from: 2022-04-20 Created: 2022-04-20 Last updated: 2023-09-01Bibliographically approved
4. What's missing?: The effect of missing data and imputation techniques on predictive performance in forecasting civil war violence
Open this publication in new window or tab >>What's missing?: The effect of missing data and imputation techniques on predictive performance in forecasting civil war violence
(English)Manuscript (preprint) (Other academic)
National Category
Other Social Sciences not elsewhere specified Probability Theory and Statistics
Research subject
Peace and Conflict Research; Statistics
Identifiers
urn:nbn:se:uu:diva-473029 (URN)
Available from: 2022-04-20 Created: 2022-04-20 Last updated: 2022-04-27Bibliographically approved

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