Table 4.
Robustness checks using GMM and truncated samples.
| Variables | GMM | Excluding GFC affected countries | OLS | |||
|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | |
| GDPG | 0.0005* | 0.0004* | 0.0003*** | 0.0008** | 0.0001 | 0.0003* | 
| (0.0001) | (0.0001) | (0.0002) | (0.0004) | (0.0001) | (0.0001) | |
| Gini | −0.0004* | 0.0001 | −0.0009*** | −0.0009* | −0.0010* | −0.0008** | 
| (0.0001) | (0.0001) | (0.0005) | (0.0003) | (0.0003) | (0.0003) | |
| PE | 0.0005 | 0.0001 | 0.0012 | 0.0040* | 0.0011** | 0.0008 | 
| (0.0005) | (0.0001) | (0.0011) | (0.0009) | (0.0006) | (0.0006) | |
| MIMLI | 0.0016** | 0.0001*** | 0.0091* | 0.0224* | 0.0036* | 0.0086* | 
| (0.0006) | (0.0003) | (0.0014) | (0.0017) | (0.0013) | (0.0006) | |
| Forest | 0.0011 | 0.0001 | 0.0031 | −0.0003* | −0.0001 | 0.0034** | 
| (0.0007) | (0.0001) | (0.0029) | (0.0001) | (0.0002) | (0.0012) | |
| OverGovtIdeol | 0.0001 | −0.0001 | 0.0011** | −0.0018** | 0.0008* | 0.0008* | 
| (0.0002) | (0.0001) | (0.0004) | (0.0009) | (0.0002) | (0.0003) | |
| Globalisation | −0.0002 | 0.0001 | 0.0018** | 0.0016* | 0.0015* | 0.0017* | 
| (0.0002) | (0.0001) | (0.0009) | (0.0004) | (0.0003) | (0.0004) | |
| Lagged HDI | 0.8046* | 0.9808* | ||||
| (0.0375) | (0.0061) | |||||
| Constant | 0.0224* | 0.0220* | 0.5603 | 0.5814 | 0.7296* | 0.6792* | 
| (0.0059) | (0.0057*) | (0.1393) | (0.0370) | (0.0299) | (0.0358) | |
| Time FE | Yes | Yes | Yes | Yes | Yes | No | 
| Country FE | No | No | No | No | No | Yes | 
| R-squared | 0.7188 | 0.5746 | 0.9860 | |||
| AR(1) | 0.0010 | 0.0010 | ||||
| AR(2) | 0.8900 | 0.5370 | ||||
| Sargan OIR | 0.1240 | 0.1260 | ||||
| Hansen OIR | 1.0000 | 1.0000 | ||||
| DHT for instruments | ||||||
| (a) Instruments in levels H excluding group | 1.0000 | |||||
| Dif (null, H exogenous) | 1.0000 | |||||
| (b) IV (years, eq [diff]) H excluding group | 1.0000 | 1.0000 | ||||
| Dif(null, H exogenous) | 0.6470 | 0.9460 | ||||
| Fisher | 6101.62* | 9319.41* | ||||
| Wald chi-squared | 1054.67* | 21663.21* | ||||
| Number of instruments | 28 | 28 | ||||
| No. of groups | 35 | 35 | 27 | 27 | 35 | 35 | 
| Number of observations | 350 | 350 | 270 | 270 | 350 | 350 | 
Note: Figures in the parentheses represent standard error. *, ** and *** denote statistically significant at 1%, 5% and 10%, respectively. DHT: difference-in-Hansen test for exogeneity of instruments’ subsets; Dif: difference; OIR: over-identifying restrictions test.