Table 4-6. Logistic regression model of probability to pay vote for increased utility bill
WTP Coef.
Bid -0.0926***
Income -.1014
Education .4654
Politic 1.0298*
Importance -2.1103***
Visitation 1.1802**
Constant 2.0281
Number of obs 131
*** indicates the variable was significant at the .01 level
** indicates the variable was significant at the .05 level
* indicates the variable was significant at the .1 level
Log likelihood = -73.5355
Interpretation of Regression Results
Bid: Bid has a statistically significant affect on the probability of a 'Yes' response at the
.01 level. The negative sign on the coefficient indicates that as the higher the dollar amount
participants were asked to pay, the less likely they would be to vote for the program. This result
was expected and conforms to economic theory.
Politic: Politic has a significant affect on the probability of a 'Yes' response, at the .1
level. The positive sign indicates that respondents who consider themselves more liberal are
more likely to vote for the program, as was predicted. This result could have interesting
implications in Columbia County as it is a mostly conservative area, and only about 20% of the
sample population identified themselves as liberal.