Figure 2.
The chart has four panels for Brunei, Indonesia, Thailand, and Vietnam. Each panel plots I Q on the x-axis and Marginal Effect of N I C, long-run, on the y-axis. Each panel has a solid marginal-effect line, point estimates at minimum, mean, and maximum I Q, vertical 95 per cent confidence intervals, and a horizontal reference line at 0. In the Brunei panel, the x-axis ranges from about 0.4 to 1.2, and the y-axis ranges from about minus 1.0 to 1.0. The marginal effect rises from about minus 0.3 at the minimum I Q point, to about minus 0.15 at the mean I Q point, and to about 0.1 at the maximum I Q point. The confidence interval at the minimum extends from about minus 0.7 to 0.1. At the mean, it extends from about minus 0.5 to 0.2. At the maximum, it extends from about minus 0.5 to 0.7. In the Indonesia panel, the x-axis ranges from about minus 1.0 to minus 0.2, and the y-axis ranges from 0 to 5. The marginal effect stays close to 2.5 at the minimum, mean, and maximum I Q points. The confidence interval at the minimum extends from about 0.2 to 4.8. At the mean, it extends from about 1.2 to 3.8. At the maximum, it extends from about 1.0 to 4.0. In the Thailand panel, the x-axis ranges from about minus 0.4 to minus 0.1, and the y-axis ranges from about minus 5 to 15. The marginal effect rises from about 2.5 at the minimum I Q point, to about 3.5 at the mean I Q point, and to about 5.0 at the maximum I Q point. The confidence interval at the minimum extends from about minus 0.7 to 5.7. At the mean, it extends from about minus 0.4 to 7.6. At the maximum, it extends from about minus 1.5 to 11.5. In the Vietnam panel, the x-axis ranges from about minus 0.7 to minus 0.2, and the y-axis ranges from about minus 0.5 to 1.5. The marginal effect rises from about minus 0.2 at the minimum I Q point, to about 0.25 at the mean I Q point, and to about 0.75 at the maximum I Q point. The confidence interval at the minimum extends from about minus 0.5 to 0.15. At the mean, it extends from about 0.0 to 0.5. At the maximum, it extends from about 0.15 to 1.35.Marginal effects of institutional quality on the relationship between national intellectual capital and green economic growth
Source: Authors’ own work