We study the incentives to adopt advanced abatement technologies in the presence of imperfect compliance. Interestingly, incentives under emission taxes and pollution abatement subsidies are the same that in the perfect compliance scenario. However, under emission standards imperfect compliance can increase firms' incentives to invest, whereas under an emission permit mechanism investment incentives decrease only if widespread non-compliance induces a reduction in the permit price. Our results are valid for fairly general characteristics of the monitoring and enforcement strategies commonly found in both, theoretical and empirical applications.Key words: environmental policy, monitoring, non-compliance, technology adoption.JEL codes: K42, L51, Q28.
IntroductionThe performance of environmental policy instruments under imperfect compliance has been analyzed, among others, in Downing and Watson [1974], Harford [1978], Jones [1989], Malik [1990], Keeler [1991], Stranlund and Dhanda [1999], Montero [2002], Sadmo [2002], Macho-Stadler and Perez-Castrillo [2006], Stranlund [2007], Arguedas [2008] and Rousseau and Proost [2009].
1All these studies evaluate the static efficiency properties of marketable emission permits, pollution taxes, abatement subsidies and/or pollution standards under different alternatives of the monitoring and sanctioning policies. Generally, they examine firms' incentives to abate pollution under given policy instruments with the possibility of non-compliance, and/or they determine optimal policies under imperfect compliance. However, none of these studies investigate the dynamic properties of these instruments with imperfect compliance, that is, firms' incentives to adopt new environmental abatement technologies. Nevertheless, questions about adoption incentives might be particularly relevant in environmental programs with significant non-compliance, as shown, for example, in the studies by Montero et al. [2002] on the emissions trading program for total suspended particles in Santiago, Chile, and by Harrington [2003] on the EPA's National Pollutant Discharge Elimination System Program of the Clean Water Act.By contrast, the issue of the adoption incentives under the different environmental policy instruments (i.e., dynamic efficiency), has been deeply studied in the case of perfect compliance.In general, the ranking of optimal policy instruments when promoting the investment in cleaner technologies depends on the structure of the regulation schemes, such as the timing of the game (or behavior of the regulator), the output market (im)perfect competition, the damage function, 1 See also Macho-Stadler [2008] for a recent overview of this literature.
etc.
2In this paper we link both literature strands by analyzing technology adoption incentives in the presence of imperfect compliance, and we compare our results with those already obtained under perfect compliance. We show that imperfect compliance does not alter adoption incentives in the case of either taxes or subsidies. However, in...