Estimations of equations 2-5 confirm the indirect links between the level of gender-based discrimination in social institutions and income. Table 5 shows a strong negative and significant relationship between the SIGI and both total factor productivity, labour force and human capital, whatever the specification used (Annexes E, F and G present the full regression results). The SIGI coefficients remain significantly negative while introducing additional control variables, controlling for potential endogeneity and performing robustness checks.