This book is of fundamental value in current legal research. It is a sound theoretical project, and shows the possibilities of dealing with complex social issues in legislation. The overall method has a strong interdisciplinary trend, which all the more shows the richness of this type of research. It will no doubt create new incentives for the improvement of legislation, as well as for new research in this genre. It should also give an incentive to investigate similar problems from a comparative perspective, for which the methodology has the potential.