2.3. Literature reviewReviewing the relevant literature, we find that only a rudimentary understanding exists about the drivers of mobile paymentacceptance. There appear to be three groups of researchers that havepublished empirical work on this topic. In a survey-based study,Linck et al. (2006) asked consumers which characteristics of mobilepayment applications they perceive as particularly relevant. Theauthors present an analysis of frequencies, indicating that consumers prefer simple, secure, and inexpensive payment services.The work by Zmijewska, Lawrence, and Steele aims to develop auser-orientated taxonomy of mobile payment systems (Zmijewskaand Lawrence 2006; Zmijewska et al. 2004a,b). They classify existing mobile payment systems, evaluating those systems based on aset of consumer-oriented criteria. Relevant classification dimensions include factors such as simplicity, security, and costs. Anexamination of the relative importance of those dimensions, however, was not included.The work by Dahlberg, Mallat, and Öörni also needs to be noted(Dahlberg et al. 2003; Mallat 2004). Based on group interviews,they analyzed factors contributing to the acceptance of mobilepayment systems. Their empirical study included 61 consumerswithin various age groups and from different professional backgrounds. The participants’ comments during open discussionrounds were subsequently coded by the researchers, yielding threerelevant factors related to mobile payment acceptance: perceivedease of use, perceived usefulness, and trust. The results were interpreted as confirming the general applicability of the technologyacceptance model in the context of mobile payment services. However, given the nature of the data, no confirmatory test of this prop