Extending the case for a beneficial brain drain

The recent literature about the so called brain drain assumes that destination countries are characterized not only by higher wages than the source country, but also by a higher or at least not lower relative return to skill. As this assumption has a doubtful empirical validity, we assess whether the main prediction of this literature, namely the possibility of a beneficial brain gain, still holds under the reverse assumption. We show that there is still a case for a beneficial brain drain. Immigration policies that are biased against unskilled workers are not necessary for a beneficial brain drain to occur once one considers that agents face heterogeneous migration costs.