[COW] Dyadic Inter-State War Dataset (v. 3.0)

By /

“The dyadic war dataset is built and fully compatible with the dyadic MID dataset (Maoz et al. 2019). It provides dyadic records of interstate wars over the period of 1816-2010, with a dyad-year unit of analysis. The dataset contains several innovations and changes compared to the war or MID datasets.” (codebook, p. 1)

The-Directed-Dyadic-Interstate-War-Dataset-Codebook

I/ Conflict variable
I/1/ Unit of conflict

Event (< 0 or 1 death)Conflict (< 25 deaths)War (< 100 deaths)Episode (< 500 deaths)
∅∅X∅
“For a dyadic war to be present both states must meet one or both of the following conditions:
(1) the state must suffer 100 or more battle-related deaths in the battles with the other state, or
(2) the state must deploy 1,000 or more troops in battles against the other state.” (codebook, p. 1)

I/2/ Conflict domain

State-based conflictNon-state conflictOne-sided violenceTO BE DETERMINED
X∅∅∅
“A dyadic war is defined as a series of sustained and lethal battles between the armed forces of two states that is a part or the whole of an interstate war.” (codebook, p. 1)

II/ Time variable
II/1/ Unit of time

DayYear
X∅
“Warstrtday
War start day” (codebook, p. 2)

II/2/ Time domain

Time domain
07/04/1823 – 02/05/2003
“It provides dyadic records of interstate wars over the period of 1816-2010, with a dyad-year unit of analysis.” (codebook, p. 1)

(directed_dyadic_war.csv, 25/05/2018)

III/ Space variable
III/1/ Unit of space

CoordinatesCountryRegionTO BE DETERMINED
∅∅∅X

III/2/ Space domain

GlobalMediterranean Sea and SahelTO BE DETERMINED
∅∅X

IV/ Data structure
IV/1/ Unit of observation

Unit of conflict (UC)UC-yearUC-actorCountry-year
∅∅∅∅
Actor-yearDyad-yearOTHERTO BE DETERMINED
∅∅∅X

(directed_dyadic_war.csv, 25/05/2018)

IV/2/ Number of observations

Number of observations
1 364

(directed_dyadic_war.csv, 25/05/2018)

V/ All variables

Conflict nameConflict typeIntensity
X∅∅
OutcomeTimeSpace
XX
ActorType of actorDyad
XXX
CoalitionDeathsNon-conflit variables
∅X∅
“Warnum
COW war number” (codebook, p. 2)
“Outcome
Outcome for state A
1 = win
2 = draw
3 = lose” (codebook, p. 2)
“Warstrtday
War start day” (codebook, p. 2)
“Statea
COW State number” (codebook, p. 2)
“Warolea
Role of state A in war
1 = primary initiator
2 = joiner on initiator’s side
3 = primary target
4 = joiner on target’s side” (codebook, p. 2)
“Warolea
Role of state A in war
1 = primary initiator
2 = joiner on initiator’s side
3 = primary target
4 = joiner on target’s side” (codebook, p. 2)
“Dyindex
Dyadic MID index number” (codebook, p. 2)
“Bathdtha
Battle-deaths state A
Note: can be lower than 100″ (codebook, p. 2)

VI/ Transparency
VI/1/ Sources

Intergovernmental organizationsGovernmental organizationsNon-governmental organizations
∅∅∅
Research organizationsPress mediaSocial media
∅∅∅
Other databasesOTHERTO BE DETERMINED
∅∅X

VI/2/ Codebook

DateVersion
TO BE DETERMINEDTO BE DETERMINED
The-Directed-Dyadic-Interstate-War-Dataset-Codebook-1

VII/ Update
VII/1/ Current version

DateVersion
20193.0
“Please cite: Please cite. Zeev Maoz, Paul L. Johnson, Jasper Kaplan, Fiona Ogunkoya, and Aaron Shreve 2019. The Dyadic Militarized Interstate Disputes (MIDs) Dataset Version 3.0: Logic, Characteristics, and Comparisons to Alternative Datasets, Journal of Conflict Resolution (forthcoming).” (codebook, p. 1)

VII/2/ Regularly updated ?

Real-timeMonthQuarterAnnually
∅∅∅∅
YES, PERIOD TO BE DETERMINEDTO BE DETERMINED
∅X

VIII/ Access
VIII/1/ Registration ?

YESNOTO BE DETERMINED
∅X∅

VIII/2/ Formats

.XLS/.XLSX.CSV.DTA (STATA).RDTA
∅XX∅

VIII/3/ API ?

YESNOTO BE DETERMINED
∅∅X