CONTEXT
This section of the journal encourages discussion between several authors on a policy-related topic. The same question may, therefore, be addressed from different theoretical, cultural or spatial perspectives. Dialogues may be applied or highly abstract. This Dialogue starts with this contribution and is followed by three comments by Jim Butcher http://dx.doi.org/10.1080/19407963.2016.1258512; Fernando Correia http://dx.doi.org/10.1080/19407963.2016.1258511; Mary G. McDonald http://dx.doi.org/10.1080/19407963.2016.1258513.
Disclosure statement
No potential conflict of interest was reported by the author.