Summary

One common way to think about citizen representation is in terms of the ideological distance between citizens and their representatives. Are political elites ideologically congruent with citizen preferences? Electoral systems are an especially important political institution to consider when studying citizen representation because they influence the size and ideological composition of party systems, how votes are translated into legislative seats, the types of governments that form after elections, and the types of policies that get implemented. In effect, electoral institutions affect each stage of the representation process as one moves from citizen preferences to policy outcomes. Research on ideological congruence indicates that electoral rules can cause distortions in citizen-elite congruence to emerge and disappear as one moves through the representation process. In this regard, studies show that proportional electoral systems enjoy a representational advantage over majoritarian systems when it comes to legislative congruence (the ideological distance between the median legislative party and the median citizen) but that this advantage disappears when it comes to government congruence (the ideological distance between the government and the median citizen).

Although research on citizen-elite ideological congruence has made significant progress over the last two decades, several new lines of inquiry are still worth pursuing. One is to move beyond the traditional focus on the left–right ideological dimension to evaluate citizen representation in a truly multidimensional framework. Another is to develop a unified theoretical framework for thinking about ideological congruence and ideological responsiveness. For too long, scholars have conducted studies of citizen-elite congruence and responsiveness in relative isolation, even though they address fundamentally related issues. In terms of measurement issues, progress can be made by developing better instruments to help locate citizens and elites on a common metric and paying more attention to the policymaking dynamics associated with minority and coalition governments. Existing studies of ideological congruence focus on the United States and the parliamentary democracies of Western Europe. Scholars might fruitfully extend the study of citizen representation to presidential democracies, other regions of the world, and even authoritarian regimes. Among other things, this may require that scholars think about how to conceptualize and measure citizen representation in countries where parties are not programmatic or where elites are not necessarily elected.