Table A.VII:
Summary Statistics of Variables from the Baseline Cross-Country Analysis
| Percentile |
||||
|---|---|---|---|---|
| Mean | SD | 10th | 90th | |
| PANEL A | Old World sample (N = 121) |
|||
| New civil conflict onsets per year, 1960–2017 | 0.025 | 0.033 | 0.000 | 0.069 |
| Population diversity (ancestry adjusted) | 0.735 | 0.018 | 0.712 | 0.754 |
| Migratory distance from East Africa (in 10,000 km) | 0.515 | 0.244 | 0.262 | 0.831 |
| Absolute latitude | 0.029 | 0.017 | 0.007 | 0.052 |
| Ruggedness | 0.124 | 0.134 | 0.016 | 0.286 |
| Mean elevation | 0.610 | 0.584 | 0.106 | 1.265 |
| Range of elevation | 1.550 | 1.322 | 0.281 | 3.043 |
| Mean land suitability | 0.359 | 0.234 | 0.035 | 0.669 |
| Range of land suitability | 0.701 | 0.259 | 0.345 | 0.974 |
| Distance to nearest waterway | 0.383 | 0.483 | 0.039 | 1.036 |
| Island nation dummy | 0.033 | 0.180 | 0.000 | 0.000 |
| Ethnic fractionalization | 0.476 | 0.264 | 0.115 | 0.812 |
| Ethnolinguistic polarization | 0.491 | 0.220 | 0.181 | 0.747 |
| Ever a U.K. colony dummy | 0.264 | 0.443 | 0.000 | 1.000 |
| Ever a French colony dummy | 0.207 | 0.407 | 0.000 | 1.000 |
| Ever a non-U.K./non-French colony dummy | 0.198 | 0.400 | 0.000 | 1.000 |
| British legal origin dummy | 0.256 | 0.438 | 0.000 | 1.000 |
| French legal origin dummy | 0.405 | 0.493 | 0.000 | 1.000 |
| Executive constraints, 1960–2017 average | 3.983 | 1.875 | 1.684 | 7.000 |
| Fraction of years under democracy, 1960–2017 | 0.367 | 0.381 | 0.000 | 1.000 |
| Fraction of years under autocracy, 1960–2017 | 0.390 | 0.327 | 0.000 | 0.900 |
| Oil or gas reserve discovery | 0.669 | 0.472 | 0.000 | 1.000 |
| Log population, 1960–2017 average | 16.072 | 1.459 | 14.385 | 17.873 |
| Log GDP per capita, 1960–2017 average | 7.638 | 1.567 | 5.649 | 9.940 |
| PANEL B | Global sample (N = 147) |
|||
| New civil conflict onsets per year, 1960–2017 | 0.022 | 0.031 | 0.000 | 0.064 |
| Population diversity (ancestry adjusted) | 0.728 | 0.027 | 0.685 | 0.752 |
| Migratory distance from East Africa (in 10,000 km) | 0.806 | 0.679 | 0.295 | 2.088 |
| Absolute latitude | 0.027 | 0.017 | 0.006 | 0.051 |
| Ruggedness | 0.125 | 0.126 | 0.018 | 0.278 |
| Mean elevation | 0.594 | 0.552 | 0.104 | 1.250 |
| Range of elevation | 1.701 | 1.389 | 0.283 | 3.752 |
| Mean land suitability | 0.386 | 0.246 | 0.046 | 0.718 |
| Range of land suitability | 0.715 | 0.264 | 0.317 | 0.994 |
| Distance to nearest waterway | 0.353 | 0.458 | 0.036 | 1.010 |
| Island nation dummy | 0.048 | 0.214 | 0.000 | 0.000 |
| Ethnic fractionalization | 0.467 | 0.254 | 0.115 | 0.792 |
| Ethnolinguistic polarization | 0.452 | 0.241 | 0.097 | 0.747 |
| Ever a U.K. colony dummy | 0.259 | 0.439 | 0.000 | 1.000 |
| Ever a French colony dummy | 0.190 | 0.394 | 0.000 | 1.000 |
| Ever a non-U.K./non-French colony dummy | 0.320 | 0.468 | 0.000 | 1.000 |
| British legal origin dummy | 0.252 | 0.435 | 0.000 | 1.000 |
| French legal origin dummy | 0.463 | 0.500 | 0.000 | 1.000 |
| Executive constraints, 1960–2017 average | 4.145 | 1.827 | 1.839 | 7.000 |
| Fraction of years under democracy, 1960–2017 | 0.408 | 0.377 | 0.000 | 1.000 |
| Fraction of years under autocracy, 1960–2017 | 0.352 | 0.323 | 0.000 | 0.879 |
| Oil or gas reserve discovery | 0.673 | 0.471 | 0.000 | 1.000 |
| Log population, 1960–2017 average | 16.087 | 1.431 | 14.423 | 17.877 |
| Log GDP per capita, 1960–2017 average | 7.703 | 1.489 | 5.705 | 9.937 |