Constantin Manuel Bosancianu, of WZB Berlin Social Science Center, Germany, presented the paper, “Party–Voter Ideological Congruence and Socio-Economic Biases in Representation: OECD over the Past 5 Decades” at the Politics and Inequality conference held in Warsaw, Poland in December 2018.
Constantin Manuel Bosancianu is a postdoctoral researcher in the “Institutions and Political Inequality” unit at the Berlin Social Science Center (WZB). He focuses on the intersection of political economy and electoral behavior: how to measure political inequalities between citizens of both developed and developing countries, and what the linkages between political and economic inequalities are. Dr. Bosancianu received his PhD in 2007 from the Central European University, Budapest, with a dissertation on how the dynamics of party ideological shifts, economic inequality, and individual political participation unfold over time. He is interested in statistics, data visualization, and the history of Leftist parties. In the past, Dr. Bosancianu taught or assisted with teaching methods courses at the European Consortium for Political Research (ECPR) Winter and Summer Methods Schools, University of Heidelberg or University of Gießen, with a focus on regression analysis, R, Bayesian analysis, and multilevel modelling.
We asked Constantin Manuel Bosancianu for an extended abstract of his Politics and Inequality conference paper and, via email, some questions about his research. We are thankful for his positive and detailed response.
Disparities in political representation between socio-economic groups, if perpetuated over time, can lead to growing disenchantment with the political process, dropout from political life, and even the appearance of new political movements that challenge representative institutions (Taggart, 2002). Starting with the early investigations of Gilens (2005, 2009, 2012) for the US context, a series of analyses have found disparities in political representation across a larger number of consolidated democracies (Elsässer, Hense, & Schäfer, 2018; Giger, Rosset, & Bernauer, 2012; Peters & Ensink, 2015; Rosset, Giger, & Bernauer, 2013; Rosset, 2013). Despite the consistent results, we continue to have very limited knowledge about the causes and mechanisms for these disparities.
This analysis probes into this issue. By relying on an original data set of merged voter studies in 30 OECD countries, going as far back in time as the 1960s and 70s, I compute a measure of ideological congruence between voters and political parties. Called the Earth Mover’s Distance (Lupu, Selios, & Warner, 2017), it is based on citizens’ self-placement on a standard Left-Right axis, as well as their placement of parties on the same scale (Powell Jr., 2009). By relying on voters’ perceptions of parties rather than legislator self-placements (Lupu & Warner, 2018), my data overcomes the potential flaw of different understandings of “Left” and “Right” between people and political elites. This measure of congruence is then used to ascertain: (1) if representation gaps between voters at the opposite end of the socio-economic spectrum are found in my sample, and (2) whether the gaps in representation are associated with a demand-side characteristic (disparities in political participation between the same socio-economic groups) or a supply-side factor (party ideological changes over time).
Preliminary findings do little to dispel the mystery surrounding the causes of unequal representation for poorer citizens, though they conclusively establish that such a gap exists. They furthermore establish that overall quality of representation is associated with disparities in participation: contexts where turnout between income groups is more unequal have worse overall representation of income groups. However, even when relying on a measure of participation disparities generated from individual-level data, no clear association exists between disparities in political voice and gaps in representation between income groups. Neither do party-system dynamics appear to explain the disparity in ideological convergence between income groups. Though inconclusive, the findings confirm those of Lupu and Warner (2018) and will hopefully spur the focus on additional mechanisms to explain the relative disadvantage in representation that poorer citizens are faced with.
The research you presented at the Politics and Inequality conference was on party–voter congruence. How did you get interested in this topic? And is this topic connected to other research that you are doing?
The interest in political representation, for which party-voter ideological congruence is one proxy, came about through my focus on understanding how to measure the facets of political inequality between individuals and groups. For the past few years I have been interested in disparities in political voice between individuals and groups—aspects such as turnout, non-electoral participation, or political efficacy. These are shaped by individual resource endowments, which naturally generate inequalities in voice. This is only part of the story, though. Another part is how disparities in voice and political influence are shaped by systemic features pertaining to, say, the electoral system or party system configurations. Some of Orit Kedar’s work is an excellent example of this, as is that of Karen L. Jusko. My own attempts refer to another feature of the system: the distribution of parties along a Left–Right ideological dimension.
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