Selección de sexo
Richard Posner sobre la selección prenatal del sexo de los hijos:
In sum, sex selection, at least in favor of males, appears not to have negative external effects. It presumably confers net private benefits (like other preference satisfaction), or otherwise it would not be practiced. (There are no external effects in societies, such as that of the United States, in which sex selection is unbiased.) The case for forbidding it is therefore unconvincing (at least when sex selection is not implemented by abortion, to which there are independent objections) unless it can be shown to create a net decrease in female welfare.
