“…Despite widespread acknowledgment of these attributes, no evidence exists in the literature substantiating these as uniquely characterizing services. Instead-and without apparent regard for systematic, operational definitionsa preponderance of services research is reported in which service scholars assume the adequacy of theoretical distinctions between goods and services in their selection of product exemplars (e.g., Bowen, 1990;George, Weinberger, Tsou, & Kelly, 1984;George, Weinberger, & Kelly, 1985;Guseman, 1981;Singh, 1990;Swartz & Stephens, 1984;Weinberger & Brown, 1977).…”