“…Based on the connotations of eco‐efficiency, current studies selected indictors from these aspects, that is, economy, resource, and environment. Gross domestic product (GDP), per capita GDP, added value of industry, production capacity, and sales volume (Moutinho, Madaleno, Robaina, & Villar, 2018; Ounsaneha & Rattanapan, 2016; Zhang, Liu, Chang, & Zhang, 2017) were selected as economic indicators. Energy consumption and energy intensity, water consumption and water intensity, electricity (Camarero, Castillo, Picazo‐Tadeo, & Tamarit, 2013; Guan & Xu, 2016; Mehmeti, Todorovic, & Scardigno, 2016; Zhou et al, 2018) were selected as the indicators of resource utilization.…”