4.7 Article

The value of externalities for biofuels and implications for policy-led development: A discrete choice experiment with Australian consumers

期刊

SUSTAINABLE PRODUCTION AND CONSUMPTION
卷 35, 期 -, 页码 592-604

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ELSEVIER
DOI: 10.1016/j.spc.2022.12.006

关键词

Biofuels; Discrete choice experiments; Externalities; Microalgae; Policy

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The sustainability of biofuels as substitutes for petrol and diesel is questionable due to economic and environmental issues in their production lifecycle. This study estimates the value of externalities associated with different types of biofuel feedstock using a sample of Australian fuel consumers. The results suggest that newer biofuel feedstock, like microalgae, can generate high consumer values compared to agricultural-based predecessors. Consumers are willing to pay more for biofuels that avoid a 10% increase in food prices and have low lifecycle emissions. Existing biofuel policies and higher incomes have contradictory associations with consumer values. The findings should inform biofuel policies to encourage the development of a more diversified range of feedstock and related technologies for more sustainable fuel alternatives.
The sustainability credentials of biofuels, as substitutes for petrol and diesel, are in question with several economic and environmental issues through their lifecycle of production depending on the feedstock. The lack of understanding of the external impacts-or externalities-of different feedstocks impact policy interventions with environmental objectives. In this study, the value of externalities associated with different types of biofuel feedstock is estimated using discrete choice experiments with a sample of Australian fuel consumers. The results indicate that newer biofuel feedstock, like microalgae, can generate high consumer values relative to its agricultural-based predecessors. Consumers were found to be willing to pay more than double for biofuels that avoid a 10 % increase to food prices, an issue that has plagued the long-term viability of agricultural-based biofuels. Consumer values for biofuels with low lifecycle emissions were also substantial. Further modelling also revealed that existing biofuel policies and higher incomes had contradictory associations with consumer values. The results should inform policy on biofuels. In particular, the high non-market values for externalities suggest that policies should encourage the development of a more diversified range of feedstock use and related technologies-rather than prioritising market transition away from fossil fuels-to increase the production of more sustainable fuel alternatives. This will ensure that the transition from fossil fuels for transport maximises societal benefits.(c) 2022 Institution of Chemical Engineers. Published by Elsevier Ltd. All rights reserved.

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