UCDP Dyadic Dataset 23.1

Data source: UCDP/PRIO

Description:

The UCDP Dyadic Dataset is a project within the Uppsala Conflict Data Program (UCDP) at the Department of Peace and Conflict Research, Uppsala University.

The UCDP Dyadic dataset builds on the UCDP/PRIO Armed Conflict dataset, but goes beyond the conflict level and focuses on dyads within each conflict. As such, it constitutes a disaggregated version of the UCDP/PRIO Armed Conflict dataset.

A dyad consists of two opposing actors in an armed conflict where at least one party is the government of a state. For the purpose of the QoG compilation, we have transformed the data so we can have a country-year identification. Please find the original format of the dataset at https://ucdp.uu.se/downloads/

Last updated by source: 2023-06-07

Dataset type:	Other
Dataset level:	Country

Citation:

When using this dataset, please cite as:

• Davies, S., Pettersson, T., & Öberg, M. (2023). Organized violence 1989-2022 and the return of conflicts between states? Journal of Peace Research, 60(4).

• Harbom, L., Melander, E., & Wallensteen, P. (2008). Dyadic dimensions of armed conflict. Journal of Peace Research, 45(5), 697–710.

• Pettersson, T. (2023). UCDP Dyadic Dataset Codebook v 23.1. https://ucdp.uu.se/downloads/

    @article{ucdp1,
 author = {Shawn Davies and Therese Pettersson and Magnus Öberg},
 journal = {Journal of Peace Research},
 number = {4},
 title = {Organized violence 1989-2022 and the return of conflicts between states?},
 volume = {60},
 year = {2023}
}

@article{ucdp2,
 author = {Harbom, Lotta and Melander, Erik and Wallensteen, Peter},
 journal = {Journal of Peace Research},
 number = {5},
 pages = {697--710},
 title = {Dyadic Dimensions of Armed Conflict},
 volume = {45},
 year = {2008}
}

@misc{ucdp3,
 author = {Pettersson, Therese},
 title = {{UCDP Dyadic Dataset Codebook v 23.1}},
 url = {https://ucdp.uu.se/downloads/},
 year = {2023}
}

Variables in this dataset:

Number of extrasystemic armed conflicts

QoG Code: ucdp_type1

Number of extrasystemic armed conflicts per country in a given year. Extrasystemic armed conflict occurs between a state and a non-state group outside its own territory. (In the COW project, extrasystemic war is subdivided into colonial war and imperial war, but this distinction is not used here.) These conflicts are by definition territorial, since the government side is fighting to retain control of a territory outside the state system.

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Number of interstate armed conflicts

QoG Code: ucdp_type2

Number of interstate armed conflicts per country in a given year. An interstate armed conflict occurs between two or more states.

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Number of internal armed conflicts

QoG Code: ucdp_type3

Number of internal armed conflicts per country in a given year. Internal armed conflict occurs between the government of a state and one or moreinternal opposition group(s) without intervention from other states.

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Number of internationalized internal armed conflicts

QoG Code: ucdp_type4

Number of internationalized internal armed conflicts per country in a given year. An internationalized internal armed conflict occurs between the government of a state and one or more internal opposition group(s) with intervention from other states (secondary parties) on one or both sides.

More about this variable