The paper separates these mechanisms instead of treating charging access as a stand-alone explanation.
Mechanism: The paper distinguishes access to private parking and home charging, which the authors describe as accelerating adoption among households already positioned to buy, from income, which they identify as the principal affordability constraint on market entry.
The authors use a probabilistic causal framework on a nationally representative dataset of Scottish households. They estimate that access to home charging raises EV ownership probability from 3.3% to 5.6%, a 2.3 percentage-point increase. Their comparison of lower- and higher-income strata associates financial capacity with a 23.1 percentage-point reduction in non-participation. Why now: The paper’s journal publication makes these estimates available as a policy-relevant research result, while the transition to electric mobility continues to raise questions about who can enter the market.
Implications: Policy analysis should consider affordability measures alongside charging access.
Parking’s estimated role should not be treated as independent of income-related selection. The findings support considering affordability interventions alongside charging access, rather than assuming that parking infrastructure alone will broaden adoption. The authors say conventional observational models overstate parking’s isolated effect because income affects both access to private parking and ability to purchase. Evidence boundary: These are causal estimates from Scottish household data under the study’s framework; they do not establish effect sizes for other countries or policy designs. First watch condition: Look for independent studies in other settings that test whether income remains the primary entry constraint and whether charging access mainly accelerates adoption among likely buyers.
No prior New Runtime record for this paper was supplied, so this establishes a distinct research record without asserting a link to an earlier item.