should be fairly obvious. There's no reason to assume the competence to govern differs significantly between the sexes (by definition a good democracy is repres

should be fairly obvious. There's no reason to assume the competence to govern differs significantly between the sexes (by definition a good democracy is representative), the fact that in many countries women constitute less than 20%-30% of representatives is obviously going to lower the performance of government. Same observation could be made about age. If you installed a quota tomorrow to make government representative on that metric you'd eliminate a huge number of quasi zombies from power.