Do carbon footprint labels promote climatarian diets? Evidence from a large-scale field experiment
View / Open Files
Publication Date
2022-06Journal Title
Journal of Environmental Economics and Management
ISSN
0095-0696
Publisher
Elsevier
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Lohmann, P., Gsottbauer, E., Doherty, A., & Kontoleon, A. (2022). Do carbon footprint labels promote climatarian diets? Evidence from a large-scale field experiment. Journal of Environmental Economics and Management https://doi.org/10.1016/j.jeem.2022.102693
Abstract
We estimate the causal effect of carbon footprint labels on individual food choices and quantify potential carbon emission reductions, using data from a large-scale field experiment at five university cafeterias with over 80,000 individual meal choices. Results show that carbon footprint labels led to a decrease in the probability of selecting a high-carbon footprint meal by approximately 2.7 percentage points with consumers substituting to mid-carbon impact meals. We find no change in the market share of low-carbon meals, on average. The reduction in high-carbon footprint meals is driven by decreases in sales of meat meals while sales of mid-ranged vegan, vegetarian and fish meals all increased. We estimate that the introduction of carbon footprint labels was associated with a 4.3% reduction in average carbon emissions per meal. We contrast our findings with those from nudge-style interventions and discuss the cost-effectiveness of carbon footprint labels. Our results suggest that carbon footprint labels present a viable and low-cost policy tool to address information failure and harness climatarian preferences to encourage more sustainable food choices.
Sponsorship
We acknowledge financial support by the Economic and Social Research Council (ESRC) and Corpus Christi College, Cambridge for one of the authors.
Funder references
ESRC (1801783)
Economic and Social Research Council (1801783)
Identifiers
External DOI: https://doi.org/10.1016/j.jeem.2022.102693
This record's URL: https://www.repository.cam.ac.uk/handle/1810/337968
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.