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Title: Are dwellers deliberative or heuristic in their decisions to invest in energy efficient renovation measures?
Authors: Taranu, Victoria 
Lizin, Sebastien 
Verbeeck, Griet 
Issue Date: 2017
Publisher: ABA Intercopy
Source: Lindström, Therese Laitinen; Blume, Ylva; Regebro, Margareta (Ed.). Consumption, Efficiency & Limits. ECEEE Summer Study Proceedings, ABA Intercopy,p. 1979-1988
Series/Report: ECEEE Summer Study proceedings
Abstract: In order to develop behaviourally-informed policies it is important to understand the mechanisms behind investment decisions in energy efficient (EE) renovation. This study contributes to understanding both deliberative and heuristic thinking of house owners. Unlike previous research, it does not limit to testing biases in isolation, but explores the balance between deliberative/heuristic thinking. The undertaken survey (n=178) consists of two parts complementing each other: a ranking exercise and a labelled choice experiment (CE). The ranking exercise consists in pairs of questions with arguments in favour of and against undertaking five EE renovation measures. It aims at verifying whether deliberative or heuristic thinking prevails. For example, a deliberative reasoning is “It is good for the environment to save energy”, denoting slow, self-aware thinking based on values, beliefs and personal norms. An example of heuristic thinking is “All my neighbours have changed their windows” denoting social norm bias that works as a shortcut. The labelled CE further explores motivations to undertake renovation measures. Respondents had to choose between four measures, with varying levels of the following characteristics: visual changes, thermal comfort obtained, CO2 reduction, investment cost, hassle during renovation and source of advice. By joining insights from both parts of the survey we can assess the consistency and draw conclusions. Results of the ranking exercise show that arguments in favour of uptake are mostly deliberative, whereas arguments against depend on whether the respondent installed the measure or not. The relevance of investment cost and reduction in CO2 in the adoption intention was reconfirmed by the CE. Since deliberative reasoning such as monetary and CO2 savings are already perceived as motivations while investment cost is still a barrier for those who did not install the measures, providing information on financing schemes might be more effective than underlining monetary savings.
Keywords: behavioural change; energy efficiency investments; policy-making; existing residential buildings; decision-making process; renovation; choice experiment; heuristic thinking
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ISBN: 9789198387810
Rights: © eceee and the authors 2017
Category: C1
Type: Proceedings Paper
Validations: vabb 2019
Appears in Collections:Research publications

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