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Table 3 Multinomial logit of market opinion clusters on demographic variables a,b

From: Greenhouse gas emission reductions as a motivator of e85 purchases across market segments

Demographic variables Estimated coefficient Standard error z
Potential activists
Intercept −1.7833 0.4987 −3.58a
Female −0.0112 0.1295 −0.09
Education 0.1568 0.0749 2.09b
Income 0.0168 0.0176 0.96
Age 0.0199 0.0040 4.95a
West −0.2042 0.2176 −0.94
South 0.2422 0.1973 1.23
Midwest 0.2164 0.2122 1.02
Political views 0.0319 0.0346 0.92
White 0.3643 0.2851 1.28
Black −0.6958 0.3469 −2.01b
Hispanic 0.6340 0.3327 1.91c
Environmentals
Intercept −3.4788 0.5427 −6.41a
Female −0.1657 0.1444 −1.15
Education 0.6551 0.0852 7.69a
Income 0.0071 0.0195 0.36
Age 0.0095 0.0045 2.10b
West −0.2446 0.2261 −1.08
South −0.1753 0.2117 −0.83
Midwest −0.3044 0.2308 −1.32
Political views 0.3173 0.0400 7.93a
White −0.0299 0.2800 −0.11
Black −1.5249 0.3710 −4.11a
Hispanic 0.4219 0.3406 1.24
National interest
Intercept −3.4829 0.7874 −4.42a
Female −0.6325 0.1883 −3.36a
Education 0.3263 0.1116 2.92a
Income 0.0730 0.0266 2.75a
Age 0.0393 0.0059 6.68a
West 0.5051 0.3250 1.55
South 0.6310 0.2989 2.11b
Midwest 0.6212 0.3250 1.91c
Political views −0.5056 0.0588 −8.60a
White 0.6011 0.4615 1.30
Black −0.2921 0.6352 −0.46
Hispanic −0.7650 0.6452 −1.19
Number of observations 1,668   
LLR test against intercept only 544.47a   
  1. a,b,cSignificance levels of 0.01, 0.05, and 0.10, respectively. The demographic variables are defined as follows: Female = 1 if female, 0 otherwise; Education = 1: less than high school, 2: high school, 3: some college, 4; bachelor's degree or higher; Income = 1: less than $5,000, 2: $7,500 to $9,999…19: $175,000 or more; Age = age in years. West, South, Midwest = 1 if reside in region, 0 otherwise; Political views = 1: strong Republican, 2: not a strong Republican, 3: leans Republican, 4: independent or undecided, 5: leans Democrat, 6: not a strong Democrat, 7: strong Democrat; and White, Black, Hispanic = 1 if race/ethnicity, 0 otherwise.