Paths to fertility reduction: the 'policy cube'

This article has enumerated several policy paths now used or proposed for dealing with rapid population growth in developing countries; has identified three standards by which such options can be appraised; has appraised policies against standards, and has embodied that process in a 'policy cube' to represent the trade-offs involved. In a rapidly evolving field like population policy, everything is subject to change--paths, criteria and scores--but the underlying process of selection has a certain constancy. If not this set, then another--but the problem remains. It is in that spirit of continuing discourse that this effort is offered.