Table 2. Baseline results.
| (1) | (2) | (3) | (4) | |
|---|---|---|---|---|
| Timespan | Unique user count | No. of inst. | No. of comments | |
| Redesign of VO (= 1) | 1.342*** | -0.019 | 0.184 | 0.327 |
| (0.449) | (0.114) | (0.252) | (0.277) | |
| GDACS alerts (= 1) | 0.417 | 0.400** | 0.442* | 0.532** |
| (0.378) | (0.177) | (0.244) | (0.257) | |
| Relief teams (= 1) | 0.520 | 2.220*** | 0.160 | 1.107 |
| (1.021) | (0.470) | (0.947) | (1.312) | |
| Relief items (= 1) | -0.119 | 0.008 | -0.783** | -1.492** |
| (0.543) | (0.278) | (0.394) | (0.655) | |
| Attachments (= 1) | -0.007 | 0.665** | 0.445 | 0.409 |
| (0.653) | (0.306) | (0.557) | (0.697) | |
| No. of deaths (log) | 0.124*** | 0.109*** | 0.220*** | 0.314*** |
| (0.032) | (0.017) | (0.022) | (0.028) | |
| GNI per capita (log) | 0.020 | 0.049 | 0.068 | 0.112 |
| (0.087) | (0.034) | (0.066) | (0.076) | |
| Democratization | -0.007 | 0.011 | 0.023* | 0.043*** |
| (0.019) | (0.008) | (0.013) | (0.016) | |
| Flood | -1.279*** | -0.219*** | -0.454*** | -0.322* |
| (0.184) | (0.074) | (0.143) | (0.184) | |
| Storm/typhoons/cyclones | -1.326*** | -0.259*** | -0.503*** | -0.227 |
| (0.179) | (0.084) | (0.143) | (0.174) | |
| Constant | 0.157 | 2.646*** | 0.277 | 0.608 |
| (0.629) | (0.237) | (0.454) | (0.537) | |
| Region dummies | Yes | Yes | Yes | Yes |
| Year dummies | Yes | Yes | Yes | Yes |
| Observations | 160 | 215 | 215 | 215 |
Robust standard errors in parentheses.
*** p<0.01.
** p<0.05.
* p<0.1.
All explanatory variables (row 1-5) are dummies that take the value 1 if a disaster took place after the specific technical update was implemented. The reference disaster type is earthquake. Landslide, fire, explosion, building collapse, chemical accident, and oil-spill also included as dummies, but not reported.