This paper uses a barrier model of politics to analyse the issue of permit
allocation as a major political obstacle to organizing (inter)national gree
nhouse gas emissions trading. It is argued that permit allocation constitut
es a barrier, because - among other things - various types of emitters have
conflicting interests in trying to lobby for as much allocated permits as
possible and because international differences in domestic permit allocatio
n procedures are perceived to potentially distort inter-firm competitivenes
s relations. Permit allocation is circumvented by applying intergovernmenta
l or project-based emissions trading. The project-approach is preferable, i
n particular because it avoids the trading of 'hot air'. (C) 2000 Elsevier
Science Ltd. All rights reserved.