Foreign Military Intervention, Power Dynamics and Rebel Group Cohesion
Codebook
January 19, 2016
Marie Olson Lounsbery
East Carolina University
Citation for the dataset:
Olson Lounsbery, Marie. 2016. “Foreign Military Intervention, Power Dynamics, and Rebel
Group Cohesion.” Journal of Global Security Studies 2.
1
Introduction
This document describes the Rebel Group Dynamics dataset. These data are organized at
the rivalry year level for all intrastate rivalries identified by the Armed Conflict Database
(Gleditsch, et al. 2002). New data on rebel group changes are added to existing data on
rivalries, nonstate actors (Cunningham, et al. 2009), foreign military intervention (Pearson
and Baumann 1989 updated by Pickering and Kisangani 2006), UCDP External Assistance
(Hogbladh, et al. 2011), mediation (Bercovitch, de Rouen and Pospieszna (2011), conflict
intensity (Lacina and Gleditsch 2005), lootable resources and mountainous terrain (Lujala
2010). For coding information on those variables, refer to their codebooks which can be
identified in the references below.
Coding information on rebel group changes are provided below. For a full description of
variable conceptualization, see Olson Lounsbery (2016).
Rebel Group Change
According to Olson Lounsbery and Cook (2011), rebel groups can “either splinter/multiply,
coalition/die off, re-emerge as separate entities after having formed a coalition or died off,
or simply be replaced by another group” (79). In order to identify these changes among the
actors involved in intrastate armed conflicts between the 1975 and 2009 time period,
internal rivalries identified by the Armed Conflict Database (ACD) are examined. Civil
conflicts tend to endure moving in and out of periods of violence. As a result, when the
same actors or set of actors are engaged in armed struggle over time, they are considered
to be engaged in the same rivalry and examined as such. Rivalries are determined by the
ACD conflict identification codes resulting in 134 internal rivalries and 1,339 rivalry years
(the unit of analysis for the data). Coups are eliminated and not included here.
Variables in the Rebel Group Dynamics dataset
TotalNo_ - Total number of rebel groups for the entire rivalry as identified by ACD. Count
variable.
NumGrps – Number of rebel groups active during the year. Count variable
NewGrp – A group emerges in the armed rivalry that is not a splinter faction. 1=new group,
0=otherwise.
Splinter – A faction of a previously identified rebel group emerges in the armed rivalry.
1=splinter faction, 0=otherwise.
Coalition – A unified rebel group emerges from previously identified rebel factions.
1=coalition, 0=otherwise.
Abate – A rebel group which had been active in the previous year is no longer active.
1=abated group, 0=otherwise.
2
Renewed_Grp – A rebel faction which had previously been active renews its struggle.
1=renewed group, 0=otherwise.
All project variables
Variable
Obs Unique
Mean
Min
Max Label
---------------------------------------------------------------------------------ccode
1339
79
591.0583
2
910
id
1339
134
122.3234
6
268
Active
1339
1
1
1
1
RivalryID
1339
154
2216.928
1060.1
3490
Location
1339
79
.
.
.
SideA
1300
79
.
.
.
SideA2nd
126
55
.
.
.
SideB
1300
338
.
.
.
sizeoppCG
1044
91
14726.44
100
160000
relstrength
1339
6
1.473488
0
5
SideBID
1300
341
.
.
.
SideB2nd
43
20
.
.
.
TotalNo_
1335
12
3.846442
1
13
NumGrps
1339
9
1.2823
0
8
NewGrp
1339
2
.0597461
0
1
Splinter
1339
2
.0358476
0
1
Coalition
1339
2
.0238984
0
1
Abate
1339
2
.0821509
0
1
Renewed_Grp
1339
2
.0896191
0
1
GvtChg
1339
2
.0156833
0
1
Incomp
1339
2
1.490665
1
2
Terr
682
67
.
.
.
year
1339
35
1991.922
1975
2009
Int
1300
2
1.253077
1
2
CumInt
1300
2
.74
0
1
Type
1300
2
3.110769
3
4
Startdate
1300
129
4184.627
-4963
18136
StartPrec
1300
6
2.066154
1
6
StartDate2
1300
238
8986.945
-4324
18262
Startprec2
1300
7
2.384615
1
7
EpEnd
1300
2
.1746154
0
1
EpEndDate
227
125
12764.58
5585
18262
EpEndPrec
227
4
3.374449
1
5
gwnoa
1300
78
590.4146
2
910
GWNOA2nd
126
55
.
.
.
gwnob
0
0
.
.
.
GWNOB2nd
43
19
.
.
.
GWNOLoc
1300
78
590.4146
2
910
Region
1300
5
3.249231
1
5
Version
1300
1
.
.
.
scode
1302
78
.
.
.
country
1302
78
.
.
.
polity2
1265
21 -.0679842
-10
10
gdp_per_ca~_ 1032
804
2001.742
84.71101
46350.42
eeurop
1301
2
.0430438
0
1
lamerica
1301
2
.0837817
0
1
ssafrica
1301
2
.2790161
0
1
asia
1301
2
.388163
0
1
mtnest
1301
64
24.94644
0
81
oil
1301
2
.1683321
0
1
intervention 1302
2
.7764977
0
1
lintervent~n 1298
2
.7334361
0
1
hostile
1339
2
.0694548
0
1
3
lhostile
supportive
lsupportive
intvonset
bdeadbes
annualdata
bdversion
A_merge
bds
coup
cumbds
rivyr
mediation
territory
lmediation
weakreb
strongreb
parity
InActive
peaceyears
govXsupp
rebXsupp
govLsupp
rebLsupp
govYsupp
rebYsupp
govWsupp
rebWsupp
govMsupp
rebMsupp
govTsupp
rebTsupp
govFsupp
rebFsupp
govIsupp
rebIsupp
govOsupp
rebOsupp
govUsupp
rebUsupp
extsuppgov
extsuppreb
rebXWFsupp
govXWFsupp
counterIMI
counterUCDP
rivyr2
cumbds_log
rivyr_log
rivyr2_log
peaceyrs_log
diamonds
ethnic
SDIAP_C
PDIAP_C
GEMP_C
ALLGEMP_C
DRUGS_C
oild_C
oilp_C
uneplnC
frst12lnC
parall_C
1298
1302
1298
1302
828
1230
1230
1339
1229
1339
1339
1339
1339
1339
1235
1339
1339
1339
1339
1339
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1277
1302
1277
1339
1316
1339
1339
128
1339
1338
1194
1194
1194
1194
1177
1194
1194
1194
1194
882
2
2
2
2
410
3
1
2
440
154
1078
64
2
2
2
2
2
2
1
22
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
64
1077
64
64
21
2
2
2
2
2
2
2
2
2
121
118
2
.0716487
.1006144
.1009245
.1543779
3052.595
1.328455
3
2.837192
2314.845
2216.749
34004.49
19.01867
.1247199
.5093353
.1052632
.7789395
.012696
.0604929
0
.4563107
.101018
.036805
.0250587
.2678152
.0571652
.101018
.3985904
.2858262
.3954581
.2372749
.3985904
.2270948
.2897416
.2701644
.045419
.0289742
.0133125
.07361
.0046985
.009397
.5418951
.5544244
.412686
.4612373
.0130568
.3453406
581.6341
8.719167
2.502283
5.004565
1.040728
.3017177
.6778774
.1549414
.038526
.2914573
.3559464
.2039082
.4530988
.39866
-1.625889
-2.518891
.3843537
0
0
0
0
25
0
3
1
15
1060.1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3.218876
0
0
0
0
0
0
0
0
0
0
0
0
-11.51293
-11.34332
0
4
1
1
1
1
80000
2
3
3
80000
3490
566342
64
1
1
1
1
1
1
0
33
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4096
13.24695
4.158883
8.317766
3.496508
1
1
1
1
1
1
1
1
1
-.0454168
-.0326207
1
Mediation Event
Territorial Rivalries
Lagged mediation
Rebels Weaker than ...
Rebels Stronger tha...
Rebels at Parity wi...
Time since last Active
(max) govXsupp
(max) rebXsupp
(max) govLsupp
(max) rebLsupp
(max) govYsupp
(max) rebYsupp
(max) govWsupp
(max) rebWsupp
(max) govMsupp
(max) rebMsupp
(max) govTsupp
(max) rebTsupp
(max) govFsupp
(max) rebFsupp
(max) govIsupp
(max) rebIsupp
(max) govOsupp
(max) rebOsupp
(max) govUsupp
(max) rebUsupp
Support to Governme...
Support to Rebels D...
Troops, Weapons and...
Troops, Weapons and...
Kimberlite and/or A...
Dummy.
Dummy.
Dummy.
Dummy.
Dummy.
Dummy.
Dummy.
Log: %
Log: %
Dummy:
If = 1; Sec....
If = 1; Prim...
If = 1; Gem ...
If = 1; Gem ...
If = 1; Drug...
If = 1; Oil ...
If = 1; Oil ...
of conflict ...
of conflict ...
if=1 another...
SDIAP
893
2
.3605823
0
1 Dummy: if=1 sec. di...
PDIAP
893
2
.1601344
0
1 Dummy: if=1 primary...
GEMP
893
2
.4860022
0
1 Dummy: if=1 Gem (ex...
ALLGEMP
893
2
.5755879
0
1 Dummy: if=1 Gem (IN...
onoilp
893
2
.7222844
0
1 Dummy: if=1 onshore...
onhydrop
885
2
.719774
0
1 Dummy: if=1 onshore...
oilp
885
2
.7220339
0
1 Dummy: if=1 oil pro...
hydrop
885
2
.7220339
0
1 Dummy: if=1 hydroca...
terr
885
2
.5050847
0
1 Dummy: if=1 incompa...
_merge
1339
2
2.317401
1
3
----------------------------------------------------------------------------------
5
References
Bercovitch, Jacob, Karl de Rouen, Jr., and Paulina Pospieszna. 2011. “Introducing the
Civil Wars Mediation (CWM) Dataset.” Journal of Peace Research 48(5): 663672.
Cunningham, David E., Kristian Skrede Gleditsch, and Idean Salehyan. 2009. “It
Takes Two: A Dyadic Analysis of Civil War.” Journal of Conflict Resolution
53(4): 570-597.
Gleditsch, Nils Petter, Peter Wallensteen, Mikael Eriksson, Margareta Sollenberg, and
Håvard Strand (2002) Armed Conflict 1946-2001: A New Dataset. Journal of
Peace Research 39(5): 615-637.
Högbladh, Stina, Therése Pettersson & Lotta Themnér, 2011. “External Support in
Armed Conflict 1975–2009. Presenting new data” Paper presented at the 52nd
Annual International Studies Association Convention, Montreal, Canada, 16-19
March, 2011.
Lacina, Bethanie and Nils Petter Gleditsch. 2005. “Monitoring Trends in Global
Combat: A New Dataset of Battle Deaths.” European Journal of Population
21(2-3): 145-166.
Lujala, Paivi. 2011. “The Spoils of Nature: Armed Civil Conflict and Rebel Access to
Natural Resources.” Journal of Peace Research 47(1): 15-28.
Olson Lounsbery, Marie and Alethia Cook. 2011. “Rebellion, Mediation and Group
Splintering: An Empirical Investigation of Competing Hypotheses,” Journal
of Peace Research 48(1): 73-84.
Pearson, Frederic S. and Robert A. Baumann. 1993. International Military Intervention,
1946-1988. Ann Arbor, MI: ICPSR [No. 6035].
Pickering, Jeffrey and Emizet N. F. Kisangani. 2009. “The International Military
Dataset: An Updated Resource for Conflict Scholars.” Journal of Peace
Research 46(4): 589-599.
6