Purpose -This paper seeks to understand the triggers which influence the adoption (and the discontinuation) of online grocery shopping. Specifically, the research aims to establish the role of situational factors in the process of adoption. Design/methodology/approach -A two-step research process is employed. First, exploratory qualitative research is carried out, with the purpose of gaining an in-depth understanding of consumers' online grocery shopping behaviour. This is followed by a large-scale quantitative survey extending the findings of the qualitative research and validating the role of situational factors in instigating the commencement (and discontinuation) of online grocery buying. Cluster analysis is used to segment consumers based on the importance of specific types of situations. Findings -Both qualitative and quantitative results establish the importance of situational factors, such as having a baby or developing health problems, as triggers for starting to buy groceries online. Many shoppers are found to discontinue online grocery shopping once the initial trigger has disappeared or they have experienced a problem with the service. Practical implications -While situational factors are beyond a marketer's control, they could be used as a basis for marketing communications content and target advertising, for instance, by using magazines directed at new parents. Originality/value -The importance of situational factors as triggers for the adoption of online grocery shopping suggests an erratic adoption process, driven by circumstances rather than by a cognitive elaboration and decision. The adoption of online shopping seems to be contingent and may be discontinued when the initiating circumstances change.

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Access to this document was granted through an Emerald subscription provided by UNIVERSITY OF SASKATCHEWAN For Authors:If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service. Information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comWith over forty years' experience, Emerald Group Publishing is a leading independent publisher of global research with impact in business, society, public policy and education. In total, Emerald publishes over 275 journals and more than 130 book series, as well as an extensive range of online products and services. Emerald is both COUNTER 3 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation.Abstract Much has been written about the strategic importance of added value as a means for achieving competitive advantage, but little attention has been paid to the meaning of the term`a dded value''. For the concept to realise its purported advantages, a better understanding of added value is crucial. To gain greater insight into the concept we undertook depth interviews with 20 leading-edge brand experts to explore their views about the nature, roles and sustainability of added value. We conclude that added value is a multidimensional construct, playing diverse roles, and interpreted in different ways by different people. The more sustainable added values are the emotional values.The research register for this journal is available at

Models of the components of brands are gaining more attention among practitioners and academics. We review why managers have a tendency to develop mental models and overview the key published models of the components of brands. Among 20 leading edge brand practitioners we found evidence of their using their own mental models to make sense of brand complexity. There were similarities between elements of their models and those of the “atomic brand model”. This particular model was favourably received by experts and from their evaluations we propose the more comprehensive “double vortex model” of the brand.