Consideration of environmental factors in reflections on car purchases: Attitudinal, behavioural and sociodemographic predictors among a large UK sample

Chng, White, Abraham, Skippon, 2019, in Journal of Cleaner Production

doi:10.1016/j.jclepro.2019.05.179
Location United Kingdom
Population General
Sample size 21992
Factor analysis type principal components, varimax rotation
Stepwise regression no
Removal of insignificant variables no
Reviewed by LCM

Abstract

Encouraging the purchase of low-emission vehicles could reduce the environmental impact of growing global car ownership. To date, however, there is relatively little research into the degree to which environmental features, such as reduced CO2 emissions, are considered important when reflecting on car purchase decisions using large representative samples. This issue was explored using data from wave four (2013/14) of the UK Household Longitudinal Study, weighted to be representative of the UK population (N = 12,895). Principal components analysis identified three types of considerations during car purchase reflections: Utilitarian, Image-conscious and Environmental. Logistic and Ordinary Least Squares regressions identified attitudinal, behavioural and sociodemographic predictors of reporting environmental considerations during car purchase. Consideration of environmental factors during reflections on car purchases was more likely among those with higher climate change concerns and topic engagement, as well as self-reported pro-environmental behaviours more generally. Environmental considerations were also higher amongst women, older adults, non-white ethnic groups, urban residents and among individuals in Scotland (vs. London). Contrary to previous findings, richer and more educated respondents were less likely to consider environmental factors, with income positively related to image factors such as brand. Although our findings offer some support for the pro-environmental attitude–behaviour consistency hypothesis, they also highlight key non-attitudinal, sociodemographic factors underlying car purchase reflections that may help social-marketers and policy makers identify key audiences to more effectively promote low-emission vehicle purchases. © 2019

Factors

Models

Dependent variable Reporting environmental considerations during car purchase
Model type Multivariate logistic regression
Sample size 12895.0
R2 nan
Adjusted R2
Pseudo R2 (nan) nan
AIC nan
BIC nan
Log-likelihood at zero nan
Log-likelihood at constants nan
Log-likelihood at convergence nan
Variable Odds_ratio p-value
Climate change concern 1.12 0.003
Climate change engagement 1.09 0.0
Climate change detachment 0.96 0.0
Turn TV off standby 1.04 0.001
Switch off lights 1.09 0.001
Water conservation 1.07 0.0
Use less heating 0.99 0.576
Buy less packaging 1.09 0.001
Buy recycled paper products 1.08 0.0
Bring own shopping bags 1.08 0.0
Using public transport 1.04 0.11
Walk/cycle short journeys 1.02 0.323
Car share 1.07 0.002
Fewer flights 1.07 0.005
Male 1.0 nan
Female 1.4 0.0
Age 16-25 1.0 nan
Age 26-35 1.12 0.315
Age 36-45 1.26 0.037
Age 46-55 1.58 0.0
Age 56-65 1.58 0.0
Age 66-75 1.6 0.001
Age over 75 1.72 0.001
White 1.0 nan
White mixed or Black/African/Caribbean/Black British 1.86 0.0
Asia/Asian British 1.77 0.0
Arab or any other ethnic group 1.44 0.139
1 (lowest) household income 1.0 nan
2 household income 0.93 0.42
3 household income 0.99 0.905
4 household income 0.92 0.315
5 (highest) household income 0.84 0.032
Employed 1.0 nan
Unemployed 1.04 0.732
Retired 1.08 0.365
In education 1.11 0.601
Family carer 0.88 0.258
No qualification 1.0 nan
Other 0.94 0.554
GCSE etc. 0.83 0.043
A levels 0.89 0.187
Other higher cert. 0.87 0.158
Degree 0.9 0.257
Longstanding illness or disability: yes 1.0 nan
Longstanding illness or disability: no 1.0 1.0
1 car in household 1.0 nan
2 cars in household 0.89 0.023
3 or more cars in household 0.79 0.002
0 children under 14 in household 1.0 nan
1 child under 14 in household 0.86 0.09
2 children under 14 in household 0.86 0.112
3 or more children under 14 in household 0.49 0.0
Rural 1.0 nan
Urban 1.2 0.0
London 1.0 nan
North East 1.45 0.011
North West 1.27 0.026
Yorkshire and the Humber 1.33 0.014
East Midlands 1.35 0.009
West Midlands 1.22 0.071
East of England 1.32 0.011
South East 1.3 0.009
South West 1.31 0.013
Wales 1.1 0.425
Scotland 1.51 0.0
Northern Ireland 1.22 0.108
Dependent variable Frequency of environmental considerations
Model type Multivariate linear regression
Sample size 12895.0
R2 nan
Adjusted R2
Pseudo R2 (nan) nan
AIC nan
BIC nan
Log-likelihood at zero nan
Log-likelihood at constants nan
Log-likelihood at convergence nan
Variable Coefficient p-value
Climate change concern 0.03 0.019
Climate change engagement 0.03 0.0
Climate change detachment -0.01 0.0
Turn TV off standby 0.01 0.05
Switch off lights 0.03 0.0
Water conservation 0.02 0.0
Use less heating 0.0 1.0
Buy less packaging 0.03 0.003
Buy recycled paper products 0.03 0.0
Bring own shopping bags 0.02 0.0
Using public transport 0.01 0.327
Walk/cycle short journeys 0.0 1.0
Car share 0.02 0.009
Fewer flights 0.02 0.009
Male 0.0 nan
Female 0.12 0.0
Age 16-25 0.0 nan
Age 26-35 0.04 0.228
Age 36-45 0.08 0.016
Age 46-55 0.15 0.0
Age 56-65 0.17 0.0
Age 66-75 0.17 0.0
Age over 75 0.23 0.0
White 0.0 nan
White mixed or Black/African/Caribbean/Black British 0.21 0.0
Asia/Asian British 0.25 0.0
Arab or any other ethnic group 0.19 0.039
1 (lowest) household income 0.0 nan
2 household income -0.03 0.285
3 household income -0.03 0.285
4 household income -0.05 0.075
5 (highest) household income -0.08 0.004
Employed 0.0 nan
Unemployed 0.01 0.794
Retired 0.03 0.285
In education 0.02 0.744
Family carer -0.07 0.05
No qualification 0.0 nan
Other 0.0 1.0
GCSE etc. -0.05 0.102
A levels -0.02 0.514
Other higher cert. -0.03 0.366
Degree -0.04 0.191
Longstanding illness or disability: yes 0.0 nan
Longstanding illness or disability: no -0.01 0.575
1 car in household 0.0 nan
2 cars in household -0.05 0.001
3 or more cars in household -0.07 0.006
0 children under 14 in household 0.0 nan
1 child under 14 in household -0.06 0.033
2 children under 14 in household -0.06 0.05
3 or more children under 14 in household -0.22 0.0
Rural 0.0 nan
Urban 0.06 0.001
London 0.0 nan
North East 0.1 0.029
North West 0.08 0.025
Yorkshire and the Humber 0.09 0.019
East Midlands 0.11 0.004
West Midlands 0.07 0.067
East of England 0.09 0.012
South East 0.1 0.003
South West 0.08 0.025
Wales 0.02 0.601
Scotland 0.15 0.0
Northern Ireland 0.07 0.086
Dependent variable Ratio of environmental considerations to total considerations
Model type Multivariate linear regression
Sample size 12895.0
R2 nan
Adjusted R2
Pseudo R2 (nan) nan
AIC nan
BIC nan
Log-likelihood at zero nan
Log-likelihood at constants nan
Log-likelihood at convergence nan
Variable Coefficient p-value
Climate change concern 0.01 0.0
Climate change engagement 0.01 0.0
Climate change detachment -0.0 1.0
Turn TV off standby 0.0 1.0
Switch off lights 0.01 0.0
Water conservation 0.01 0.0
Use less heating 0.0 1.0
Buy less packaging 0.01 0.0
Buy recycled paper products 0.01 0.0
Bring own shopping bags 0.0 1.0
Using public transport 0.0 1.0
Walk/cycle short journeys 0.0 1.0
Car share 0.0 1.0
Fewer flights 0.0 1.0
Male 0.0 nan
Female 0.03 0.0
Age 16-25 0.0 nan
Age 26-35 0.0 1.0
Age 36-45 0.01 0.191
Age 46-55 0.03 0.003
Age 56-65 0.03 0.0
Age 66-75 0.04 0.0
Age over 75 0.06 0.0
White 0.0 nan
White mixed or Black/African/Caribbean/Black British 0.04 0.002
Asia/Asian British 0.06 0.0
Arab or any other ethnic group 0.05 0.05
1 (lowest) household income 0.0 nan
2 household income -0.01 0.191
3 household income -0.01 0.191
4 household income -0.02 0.009
5 (highest) household income -0.02 0.009
Employed 0.0 nan
Unemployed 0.0 1.0
Retired 0.0 1.0
In education 0.01 0.575
Family carer -0.02 0.009
No qualification 0.0 nan
Other -0.01 0.191
GCSE etc. -0.03 0.003
A levels -0.03 0.0
Other higher cert. -0.03 1.0
Degree -0.03 0.0
Longstanding illness or disability: yes 0.0 nan
Longstanding illness or disability: no -0.0 1.0
1 car in household 0.0 nan
2 cars in household -0.01 0.05
3 or more cars in household -0.02 0.0
0 children under 14 in household 0.0 nan
1 child under 14 in household -0.01 0.191
2 children under 14 in household -0.02 0.009
3 or more children under 14 in household -0.05 0.0
Rural 0.0 nan
Urban 0.02 0.0
London 0.0 nan
North East 0.02 0.05
North West 0.01 0.327
Yorkshire and the Humber 0.02 0.05
East Midlands 0.01 0.327
West Midlands 0.01 0.327
East of England 0.02 0.009
South East 0.01 0.191
South West 0.01 0.191
Wales 0.01 0.327
Scotland 0.03 0.0
Northern Ireland 0.01 0.327

The Attitudes and Travel Database is produced with support from the Center for Teaching Old Models New Tricks at Arizona State University, a University Transportation Center sponsored by the US Department of Transportation through Grant No. 69A3551747116.

sha256:a08d9e369743bf7e6d1c40d27347318209b40a7fb1543813fdcf31b898918815