The dynamics of purchasing an electric vehicle – A prospective longitudinal study of the decision-making process |
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| Institution: | 1. Department of Psychology, Umeå Univeristy, Sweden;2. Transportation Research Unit (TRUM), Umeå University, Sweden;3. Umeå School of Business and Economics, Umeå University, Sweden;4. Lund University School of Economics and Management, Sweden;5. Department of Geography and Economic History, Umeå University, Sweden;1. Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK;2. CENEX, Centre for Excellence in Low Carbon and Fuel Cell Technologies, Loughborough University Science and Enterprise Park, Oakwood Drive, Loughborough, LE11 3QF, UK;3. Birmingham Business School, University of Birmingham, Edgbaston, Birmingham, B15 2TY, UK;1. Lucerne University of Applied Sciences and Arts, School of Business, Department of Marketing and Communication, Zentralstrasse 9, CH-6002, Luzern, Switzerland;2. University of Applied Sciences and Arts – Lucerne, Lucerne School of Business, Center for Mobility, Rösslimatte 48, Postfach 2940, CH-6002, Luzern, Switzerland;1. Institute of Psychology, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany;2. Center for Interdisciplinary Risk and Innovation Studies (ZIRIUS), University of Stuttgart, Seidenstr. 36, 70174 Stuttgart, Germany |
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| Abstract: | This paper presents the results of a longitudinal prospective study which followed 113 people interested in the purchase of an electric vehicle for a period of two months. Based on an adapted stage model of self-regulated behavioral change (Bamberg, 2013b), a short online questionnaire with a stage diagnostic and the measurement of central model constructs was administered to the participants every second day. The analysis shows that 85% of transitions between the stages occur along the paths of the stage model. Stage transitions are preceded by increases in goal intentions and implementation intentions during the week before the transition. Intentions are predicted by most of the expected model constructs, but the effects were different on the between-person and the within-person level. The average stage durations are between two and three weeks. Implications of the study for research on stage models and practice are discussed. |
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| Keywords: | Electric vehicle Purchase decisions Stage model Psychology Norway Multilevel analysis Latent growth Longitudinal Prospective |
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