Mia Costa

Dartmouth College · Department of Government

Most foundational theories of congressional representation were developed during an era of less polarized and less partisan politics. These theories viewed the incumbency advantage as buttressed by the fact that some constituents were willing to support legislators from the opposite party because of their “home styles.” But in an era of policy immo...

In the past decade, the body of research using experimental approaches to investigate the responsiveness of elected officials has grown exponentially. Given this explosion of work, a systematic assessment of these studies is needed not only to take stock of what we have learned so far about democratic responsiveness, but also to inform the design o...

Psychological theories of political behavior suggest that commitments to perform a certain action can significantly increase the likelihood of such action, but this has rarely been tested in an experimental context. Does pledging to vote increase turnout? In cooperation with the Environmental Defense Fund during the 2016 election, we conduct the fi...

Citizen Evaluations of Legislator–Constituent Communication - Mia Costa

Citizens hold gender-specific stereotypes about women in political office, yet scholars disagree on whether these stereotypes lead to a “double bind” in which female legislators are held to higher standards than male legislators. Two survey experiments reveal how citizen evaluations of elite responsiveness to constituent mail are conditioned by gen...

Scholars have extensively studied whether campaign attack advertisements –messages that attack individual candidates– mobilize or demobilize voters with mixed results. We argue that group-oriented partisan affect in campaigns –messages about the parties in general– is just as important given increasing trends of affective polarization. We use two s...

The effect of women in politics is vitally important for the study of representation, yet evidence is mixed on the extent to which women’s presence influences individuals’ symbolic attitudes and behaviors. We use a priming survey experiment to examine how information about increased women candidates in the U.S. affects political ambition, efficacy,...

How do citizens want to be represented by elected officials in an era of affective polarization? Contemporary narratives about American politics argue that people embrace elite expressions of negative partisanship, above and beyond representation on policy. Using three conjoint experiments, I examine how individuals weigh the relative value of subs...

Influential theories of motivated reasoning, as well as real-world anecdotal examples, would suggest that voters do not always penalize legislators from their own party for alleged immoral behavior, such as sexual harassment. But very little empirical evidence exists on how voters react to sexual misconduct allegations, especially since the start o...

Scholars have long suggested that familial life can affect political behavior and, more recently, have found that fathering daughters leads men to adopt more liberal positions on gender equality policies. However, few have focused on the impact of fathering a daughter on congressional behavior, particularly in an era of heightened partisan polariza...

Scholarship on bureaucratic policymaking has long focused on both the use of expertise and public accountability. However, few have considered the degree to which public input affects the use of research in U.S. regulatory impact analyses (RIAs). We examine changes in the research that is cited in RIAs in response to public comments to assess the i...

Scholars argue that women's presence in politics enhances symbolic representation, such as positive evaluations of one's representative and increased political engagement. However, there is little empirical evidence of these symbolic benefits from descriptive representation. With data from the Cooperative Congressional Election Study panel survey,...

Psychological theories of political behavior suggest that commitments to perform a certain action can significantly increase the likelihood of such action, but this has rarely been tested in an experimental context. Does pledging to vote increase turnout? In cooperation with the Environmental Defense Fund during the 2016 election, we conduct the fi...

Scholars have long argued that women's presence in politics enhances symbolic representation , such as positive evaluations of one's elected officials and increased political engagement. However, there is little empirical evidence of the symbolic benefits of descriptive representation of women. With a unique quasi-experimental approach and data fro...

Scholars, policymakers, and research sponsors have long sought to understand the conditions under which scientific research is used in the policymaking process. Recent research has identified a resource that can be used to trace the use of science across time and many policy domains. US federal agencies are mandated by executive order to justify al...