University of California law professor Michele Goodwin has spoken out on the realities of industrial surrogacy - a transaction that involves women in developing countries carrying pregnancies for wealthier women in the West.She said it was often spoken about in terms of love and sisterhood between the one paying and the one doing the work, but that "love can often be a cover for inequality".Addressing the Women Deliver 2016 Global Conference in Copenhagen, Goodwin said her research had found that US women paid up to $150000 to "rent a womb". But the women renting out their wombs, often in India, were paid less than $8000 and often saw only a small fraction of that after the broker's commission.She said "assisted reproductive technology" had "caught on like wildfire around the world" and had been marketed as "sisterhood".She said it had "corrected nature's discrimination against gay people", had helped couples suffering from infertility and gave destitute families hope - especially in India where, for some rural women, the only alternatives were "selling dung patties or doing sex work".But, she said, there had been cases of death and sickness associated with some of the pregnancies, there were cases of people from the West changing their minds about taking the baby and often the woman "renting the womb" had no say in the negotiations.More recently, some countries have banned the practice, but some experts argue that it has simply been driven underground because of how lucrative it is...