Work and fertility of women

Possibly, the most important social event of the last fifty years is that women are working much more in the market, in some countries reachinig rates of participation similar to males, and that they are reaching educational levels above the men in Europe and the Americas. Nevertheless, until the nineties, women with children worked less in the market. This seems to be changing, and for the first time (¿in history?), we see that on average, in countries where women have more children there is also more female work in the market. This, in OECD countries Esto, en países de la OCDE.