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Dwivedi, Yogesh K.; Rana, Nripendra P.; Janssen, Marijn; Lal, Banita; Williams, Michael D.; Clement, Marc
Government information quarterly, April 2017, 2017-04-00, Volume: 34, Issue: 2Journal Article
In electronic government (hereafter e-government), a large variety of technology adoption models are employed, which make researchers and policymakers puzzled about which one to use. In this research, nine well-known theoretical models of information technology adoption are evaluated and 29 different constructs are identified. A unified model of e-government adoption (UMEGA) is developed and validated using data gathered from 377 respondents from seven selected cities in India. The results indicate that the proposed unified model outperforms all other theoretical models, explaining the highest variance on behavioral intention, acceptable levels of fit indices, and significant relationships for each of the seven hypotheses. The UMEGA is a parsimonious model based on the e-government-specific context, whereas the constructs from the original technology adoption models were found to be inappropriate for the e-government context. By using the UMEGA, relevant e-government constructs were included. For further research, we recommend the development of e-government-specific scales. •Nine adoption models are reviewed.•29 different adoption constructs are identified.•The UMEGA outperforms all other models for e-government•Government context should be taken into account.•The UMEGA is simpler to use and has a better explanatory power than the UTAUT.
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