Income was positively correlated with membership in the National interest cluster relative to the Neutral cluster.
The National interest cluster is the smallest of the four with 239 respondents.
They are second behind the National interest cluster in disagreeing with the statement that they do not have enough information to make well-informed decisions on environmental issues.
The National interest cluster is the most likely to agree that science and technology will develop solutions for environmental and pollution problems.
The coefficient on the regional variables indicates that respondents residing in the South and the Midwest were more likely to fall in the National interest cluster.
Those in the National interest cluster tended to be more conservative in their political leanings, be males, and to have higher incomes.
As can be seen in Table 3, the coefficient on the Female variable for the National interest cluster in the multinomial logit model was negative and significant, implying that females were less likely to be members of the National interest cluster than of the Neutral cluster.
Respondents who leaned more toward being a Democrat were more likely to be a member of the Environmental cluster, but less likely to be a member of the National interest cluster.
Membership in the National interest cluster is expected to have a negative influence on WTP as these individuals are more concerned about national security and less concerned about the environment.
These three analyses were a conditional logit and a RPL, in which the Potential activist, Environmental, and National interest cluster variables were interacted with the emissions reduction (Reduce) product attribute, and a RPL on the product attributes only.
