Table 2.
Trends in the supply chain and economic growth: a reference model (economic growth)
| Variable | (1) | (2) | (3) |
|---|---|---|---|
| SClogistics | 0.024* (0.013) | ||
| Energy consumption | 0.021* (0.012) | ||
| CO2 emissions | − 0.013*** (0.004) | ||
| Financial aid | 0.017*** (0.006) | 0.017*** (0.006 | 0.016*** (0.006) |
| Tax cut | 0.260*** (0.093) | 0.261*** (0.094) | 0.253*** (0.093) |
| Subsidy | 0.006 (0.005) | 0.006 (0.005) | 0.006 (0.005) |
| Insurance | 0.007* (0.004) | 0.007* (0.007) | 0.008* (0.006) |
| R-squared | 0.214 | 0.19 | 0.205 |
| Endogeneity test | 1.517 [0.218] | 2.817* [0.093] | 1.154 [0.283] |
| Weak Identification test | 29.18 | 24.01 | 11.45 |
| Under identification test | 33.41*** [0.000] | 30.83*** [0.000] | 17.33*** [0.000] |
| Over identification test | 0.125 [0.731] | 0.018 [0.897] | 0.221 [0.639] |
Author calculation
Additional information on the variables may be found in Table 1. Each model is subjected to an OLS control to account for peripheral and temporal effects. Although a fixed term is included, it is omitted. Standard errors with large magnitudes are enclosed in parentheses, whereas probability values are enclosed in parentheses. The delta technique was used to calculate the typical elasticity errors. The asterisks denote the following degrees of significance: **p0.05; ***p0.01