“…In the context of CSR, one of the alternative ways to improve SMEs' environmental performance is to focus on the greening of an industrial cluster (instead of working with individual firms) as many SMEs tend to concentrate in local geographical regions and interact with each other in a specific industry (Blackman & Kildegaard, 2010;Carpinetti, Galdámez, & Gerolamo, 2008;Domingues & Paulino, 2009;Konstadakopulos, 2008;Mbohwa, Rwakatiwana, & Fore, 2010). The literature on CSR in clusters of SMEs is growing but is still limited when compared with the volume of research produced on CSR in large companies (Brío & Junquera, 2003;Fresner, 2004;Heras & Arana, 2010;Lund-Thomsen & Pillay, 2012;MacGregor & Fontrodona, 2011).…”