Table 1. Summary data for placement on a left-right scale of green and social democratic voters.
Next I will look at some proxies for middle-class status and their relationship with a predilection for voting either green or social democratic. Since my hypothesis is not only that persons who are currently middle class are, ideology being held constant, more likely to vote green than social democratic, but also (and this is actually the important past), those who have middle-class backgrounds, i.e., their parents were middle class as well, form the base of ecological party support. Therefore, two proxies for continued middle-class status are introduced, father’s level of education and father’s employment status – professional, middle class, working class.
1. Level of education
First, looking at the respondent's (voter's) level of education, there is in several countries in the survey a marked relationship in the likelihood to support either a green or social democratic party, based on level of education. This relationship is particularly evident in the case of Austria:
Figure 1. The relationship between education and the probability of voting either green (Grüne) or social democratic (SPÖ) in Austria.
The above graph shows Austria to be an almost perfect illustration of the effect of education on voting behavior among "soft left" respondents. the probability lines are almost symmetrical in their negative relationship - the less educated you are, the more likely you will vote for the SPÖ; the better educated, the greater likelihood you will vote Grüne, with the point at which the likelihood is the same being at roughly 15 years of education.
Figure 2. The relationship between education and the probability of voting either green (Vihreä liitto) or social democratic (Suomen Sosialidemokraattinen Puolue) in Finland.
Here we see a situation similar to the one in Austria, where "soft-left" voters likelihood to vote green can be seen as a function of education more than anything else, especially as we see education level as a proxy for social class (probably something we can get away with more readily in Europe than in the United States.)
Figure 3. The relationship between education and the probability of voting either green (Grüne) or social democratic (SPÖ) in Sweden.