“…ENDS, 2002;NAO, 2004), though the mechanisms and motives for participation are more complicated due to the offer of a fi nancial incentive and the absence of any mandatory arm of the programme. Important groundwork on business motives for participation in the UK ETS has been undertaken by a variety of researchers and organizations (see among others Von Malmborg and Strachan, 2005;Roeser andJackson, 2003, NAO, 2004;NERA, 2003;Enviros, 2003Enviros, , 2006DEFRA, 2002). In general, these studies identify three primary motives for participation, including a desire to take up the fi nancial incentive offered for participation in the UK ETS (in some cases as a method of subsidizing investment in effi ciency measures, or to offset Climate Change Levy payments), early mover considerations associated with gaining experience in emission trading prior to the introduction of the EU emission trading scheme and a desire to demonstrate environmental initiative to government and the public.…”