“…The literature on the EU ETS has been growing very rapidly devoting particular attention to specific aspects or problems encountered by the EU ETS over these years, such as the over-allocation registered in the early phases (Gilbert et al, 2004;Sijm, 2005), the causes, components and consequences of the observed price volatility (Alberola et al, 2008;Chevallier, 2012a;Medina et al, 2014;Gronwald and Hintermann, 2015), the drivers of the price fall in Phase II (Koch et al, 2014), the existence of frauds and monitoring problems (Frunza et al, 2011), the role of banking and borrowing for the functioning of the scheme (Caton et al, 2015;Chevallier, 2012b), the possible carbon leakage effects induced by the EU ETS (Clò, 2010: Martin et al, 2014a, its estimated impact on emissions abatement (Germà and Stephan, 2015), the structural measures proposed by the European Commission to reform the EU ETS (Clò et al, 2013;de Perthuis and Trotignon, 2014), the perspective of linking the EU ETS with other similar ETSs around the world (Anger, 2008;Tuerk et al, 2009;Ranson and Stavins, 2015). Much of the literature, moreover, has focused on the effects of the EU ETS on technological innovation, using surveys of managerial interviews and/or performing estimations of econometric models that account for the EU ETS among their covariates to test whether the implementation of the system has spurred environmental-friendly innovations (see Abrell et al, 2011;Aghion et al, 2009;Anderson and Di Maria, 2011;Borghesi et al, 2015;Calel and Dechezleprêtre, 2015;Hoffman, 2007;Martin et al, 2011;Rogge et al, 2011;Schmidt et al, 2012).…”