Abstract
PurposeThe purpose of this paper is to analyse the effect of attitudes and socio-demographics on wine consumers’ real purchase behaviour for organic wine.Design/methodology/approachThis study is based on GfK household panel data, a real market data source of high population coverage. A two-part fractional model was applied as two distinct categories of wine buyers were observed. The first part of the two-part fractional model consisted of a standard binary choice model and defined the likelihood of belonging to the group of organic wine buyers. The second part of the model only took organic wine buyers into account and described their purchase intensity.FindingsPreferences for organic products and sustainability concerns (e.g. environmental and social concerns) drive organic wine purchases. Proving a causal relation between attitudes and purchase behaviour gives evidence that stated preferences are a reliable indicator to predict consumer behaviour. However, the weak relation between attitudes and behaviour confirms the existence of an attitude-behaviour gap.Practical implicationsQuality benefits of organic wine production need to be communicated to attract new customers. Stronger focus should be put on sustainability issues with the aim of encouraging organic customers to also increase their expenditures for organic wine.Originality/valueThe influence of sustainability concerns on purchase behaviour is still controversial and no study, so far, has analysed real purchase data for organic wine. The results provide new insights on why attitudes do not fully transform into purchase behaviour.
Published Version
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