“…Previous research on eco-efficient services (EES; e.g., Bartolomeo et al, 2003;Meijkamp, 1998;Van der Zwan and Bhamra, 2003) and sustainable product service systems (PSS; Mont, 2002;Roy, 2000) 4 has argued for reducing the use of natural resources through 'product-based services' that extend the lives of existing products (e.g., maintenance, revalorization services). The concept of 'green logistics' (Isaksson and Huge-Brodin, 2013) aims to reduce the environmental impact of logistical processes (such as delivery services) through resource efficiency in a network of suppliers and customers in the supply chain, such as combining transport modes, purchasing in bulk, using eco-friendly fleet and fuel, energy consulting and maintenance services, raising endcustomers' awareness, redesigning products and packaging eco-efficiently, and replacing products with service provision and technology (Chan et al, 2016;Cocca and Ganz, 2015;Enquist et al, 2007;Hsiao et al, 2018;Isaksson and Huge-Brodin, 2013;Lacoste, 2016;Wolfson et al, 2011;Wong et al, 2013;Zhang et al, 2012). Several authors have distinguished between core green service provided by firms themselves and green service supporting other firms in the supply chain (Bartolomeo et al, 2003;Cocca and Ganz, 2015;Hsiao et al, 2018;Isaksson and Huge-Brodin, 2013;Lacoste, 2016;Wong et al, 2013).…”