Table 17 Hypothetical bias without different income categories (Coll)

From: The Influence of Collective Action on the Demand for Voluntary Climate Change Mitigation in Hypothetical and Real Situations

  \(\hbox {Inc}\ne \hbox {low}\) \(\hbox {Inc}\ne \hbox {middle }\) \(\hbox {Inc}\ne \hbox {high}\) \(\hbox {Inc}\ne \hbox {missing}\)
Price \(0.97^{***}\) \(0.97^{***}\) \(0.97^{***}\) \(0.97^{***}\)
Male 0.72\(^{***}\) 0.80 0.83 0.85
Age 1.01 1.00 1.00 1.00
Kids in HH 0.90 0.82 1.00 0.91
Single 1.03 0.87 1.01 0.85
University degree 1.27 1.10 1.26 1.02
Votes Green 1.07 1.37 1.11 1.03
HH Income
   Low Ref Ref Ref
   Middle Ref 1.37\(^{**}\) 1.31
   High and very high 0.87 1.16 1.12
   Missing 0.94 1.24 1.25 -
Worry 1.25 1.29 1.13 1.42\(^{**}\)
Policy preferences
   Emission trading \(2.46^{***}\) \(1.83^{***}\) \(2.21^{***}\) \(2.42^{***}\)
Renewables 1.62\(^{***}\) 1.37 1.81\(^{***}\) 1.65\(^{***}\)
   Trading##Renewables \(0.40^{***}\) \(0.54^{**}\) \(0.36^{***}\) \(0.39^{***}\)
   Dilemma awareness \(0.51^{***}\) \(0.57^{***}\) \(0.54^{***}\) \(0.47^{***}\)
Personal norm \(1.41^{***}\) \(1.27^{***}\) \(1.43^{***}\) \(1.28^{***}\)
HYPO \(1.67^{***}\) \(1.74^{***}\) \(1.59^{***}\) \(1.66^{***}\)
Observations 3477 2889 3168 3651
Pseudo \(R^{2}\) 0.082 0.063 0.072 0.077
  1. Choice of certificate is the dependent variable, coefficients are presented as odds ratios, ** \(p < 0.05\); *** \(p< 0.01\), standard errors are corrected for clustered observations
  2. Ref reference category