Are we turning a brighter shade of green? The relationship between household characteristics and greenhouse gas emissions from

Corey Allan, Suzi Kerr and Campbell Will

No 290594, Motu Working Papers from Motu Economic and Public Policy Research

Abstract: We test whether New Zealand households have become greener consumers by estimating environmental Engel curves (EECs), which describe the relationship between household income and the pollution embodied in a household’s consumption bundle. Our pollutants of interest are greenhouse gases (GHGs). To our knowledge, this is the first paper that tests for a change over time in climate change-related household behaviour. We calculate the greenhouse gases embodied in household consumption bundles using standard environmental input-output (IO) analysis combined with detailed household expenditure data from the 2006/07 and 2012/13 waves of the New Zealand Household Economic Survey. Consistent with international literature, we find that emissions increase less-than-proportionately with household expenditure (a proxy for permanent income). There is significant variation in expenditure elasticities across consumption categories; emissions from household energy are unresponsive to household expenditure, while emissions from transport are highly responsive to expenditure. Household expenditure and composition explain the majority of the cross-sectional variation in household emissions. We conduct a simple test for changes over time in household consumption patterns that affect emissions, taking price changes into account. We find that, controlling for a rich set of household characteristics, household emissions were marginally lower on average in the 2012/13 survey than the 2006/07 survey. This result is largely driven by a reduction in emissions from household energy. We also find that wealthier households had a smaller reduction in emissions between surveys. Our results suggest this is due to higher levels of international air travel by wealthier households.

Keywords: Consumer/Household Economics; Environmental Economics and Policy (search for similar items in EconPapers)
Pages: 45
Date: 2015-11
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Persistent link: https://EconPapers.repec.org/RePEc:ags:motuwp:290594

DOI: 10.22004/ag.econ.290594

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