Why women should pay less tax by Alberto Alesina and Andrea Ichino at the Financial Times, argues that women should pay a lower income tax rate because their labor supply is more sensitive to aftertax wages. That’s true as far as it goes.
Since we are talking about people and not goods, one needs to worry about whether such a policy undermines other social goals. In fact it does not, and this is why social activists should favour it as well. Increasing the labour participation of women is an explicit goal of the European Union’s Lisbon agenda. It sets a very ambitious target for female employment, especially in southern Europe, where women tend to stay at home more.
Yes, this is a well-known point– that women have more elastic supply, and it immediately follows they should be taxed less. Unless– the big unless– you think it’s good that women stay home and take care of their own kids, which I do. If they go to work, the kids are brought up with less adult attention and by people with less talent and interest. Thus, the kids are the losers.
Also, lower taxes on women would reduce their pretax wages, not increase them. There would be the direct Ec-10 effect, and also if more women enter the labor force, they’ll compete their wages down. Post-tax wages do have to increase.