I am an Assistant Professor of Political Science at the University of California, Davis. My research lies at
the
intersection of Comparative Politics and Political Economy. My work examines how structural economic
transformations—such as shifting labor markets, the housing crisis, and
the energy transition—reshape politics in advanced democracies. I study how these changes affect voter
preferences, the policymaking process, and democratic institutions. My work leverages a range of
research
designs and data sources, including natural experiments, large-scale surveys and administrative data.
Previously, I was a Postdoctoral Fellow at the Center for the Study of Democratic Politics at Princeton University. I graduaded with a PhD from the Department of
Government at Harvard University in
2022.
During the summer of 2025, I am a visiting researcher at Humboldt University in Berlin. Please contact me if
you are in Berlin or passing through.
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Biased Party Nominations as a Source of Women's Electoral
Underperformance
(with Pia Raffler and Thomas Fujiwara). Conditionally Accepted, American Journal of Political Science.
[Abstract]
What accounts for differences in electoral success between male and female candidates? We argue that parties
systematically nominate female candidates to districts where the party is less popular, making it harder for
women
to get elected. Our empirical strategy uses the German mixed electoral system to create counterfactual
gender vote
gaps. These gaps represent the scenario where male and female candidates are nominated in districts where
their
respective parties have equal popularity. Using data on all candidates for the German Bundestag across
eleven
elections, we document that female underperformance, and its variation across parties and election years, is
explained almost entirely by women running in districts where their party is less popular. In contrast, we
find no
evidence that voter bias or candidate characteristics play a substantial role. Our argument highlights
gendered
party gatekeeping that increases in district strength as an important driver of female underrepresentation.
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The Gendered Persistence of Authoritarian
Indoctrination
(with Nourhan A. Elsayed, Sascha Riaz, and Daniel Ziblatt). Forthcoming, British Journal of Political
Science.
[Abstract]
A large literature has studied the effects of socialization under authoritarianism on political attitudes.
In this
research note, we extend this literature by demonstrating striking gender disparities in the post-transition
persistence of these effects. We study the case of authoritarian indoctrination in the German Democratic
Republic
(GDR) using a regression kink design for causal identification. First, we draw on a unique survey fielded
right
before reunification to show that education under authoritarianism substantially reduced support for
democratic
capitalism and reunification with the West. In the second step, we triangulate multiple contemporary data
sources to
trace the persistence of these effects over time. Three decades after the fall of the GDR, the attitudinal
effects
of authoritarian indoctrination persist only among men, but not women. Our results highlight considerable
heterogeneity in the persistence of authoritarian legacies, raising critical questions about
post-authoritarian
"re-socialization" and gendered adaptability.
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Estimating controlled direct effects with panel data: an
application to reducing support for discriminatory policies
(with Matthew Blackwell, Adam Glynn, and Connor Halloran Phillips). Forthcoming, Journal of the Royal
Statistical Society: Series A.
[Abstract]
Recent experimental studies in the social sciences have demonstrated that perspective-taking conversations
are effective at reducing prejudicial attitudes and support for discriminatory policies. We ask if such
interventions can directly affect policy views without changing prejudice. Unfortunately, the identification
of the controlled direct effect—the natural causal quantity of interest for this question—has required
strong selection-on-observables assumptions for any mediator. We leverage a recent experimental study with
multiple survey waves of follow-up to identify and estimate the controlled direct effect using the changes
in the outcome and mediator over time assuming parallel trends in the potential outcomes. This design allows
us to weaken the identification assumptions to allow for linear and time-constant unmeasured confounding
between the mediator and the outcome. We develop a semiparametrically efficient and doubly robust estimator
for these quantities along with a sensitivity analysis for the key identifying assumption of parallel
trends. Contrary to what traditional methods find, our approach estimates a controlled direct effect of
perspective-taking conversations when subjective feelings are neutral but not positive or negative, and this
result is robust to moderate departures from parallel trends.
-
Do Autocrats Respond to Citizen
Demands? Petitions and Housing Construction in the GDR
(with Hans Lueders and Sascha Riaz). Forthcoming, Comparative Political Studies.
[Abstract]
Citizens in authoritarian regimes frequently communicate grievances to the government. While there is some
evidence that governments respond to such petitions, little is known about the nature of this
responsiveness: can
petitions yield tangible improvements to citizens' livelihoods? To answer this question, we assemble a novel
panel
of housing-related petitions to the government of the German Democratic Republic (GDR) and all housing
constructed
between 1945-1989. Exploiting the timing of the largest housing program in 1971, we employ a
difference-in-differences design to show that construction was targeted at regions with higher rates of
petitioning. We then use a variance decomposition method to benchmark the importance of petitions against
objective indicators of housing need. Our results suggest that petitions allow citizens to meaningfully
influence
the allocation of public resources. The paper contributes to nascent scholarship on responsiveness in
non-democratic regimes and shows that responsiveness leads to tangible improvements in citizens'
livelihoods.
-
How Budget Tradeoffs Undermine
Electoral Incentives to Build Public Housing
(with Andreas Wiedemann). Forthcoming, American Journal of Political Science.
[Abstract]
Housing shortages and rising rents have increased demands for affordable housing. In this paper, we examine
whether
electoral constraints can undermine local politicians' incentives to build public housing. Empirically, we
draw on the
full-count census of all housing built in Germany, data on 19,685 local elections between 1989 and 2011, and
an original
survey. Using a difference-in-differences design, we demonstrate that incumbents are not rewarded, but
rather experience
moderate electoral losses after constructing new public housing. We then show that these losses are not
primarily driven
by homeowner opposition or native–foreigner competition. Instead, electoral punishment is largest in
economically
disadvantaged municipalities with relatively affordable housing, as voters prioritize spending in other
local policy
areas that are crowded out by public housing. Survey evidence demonstrates that electoral constraints emerge
when
voters' short-term spending preferences conflict with municipalities' long-term goals to provide affordable
housing.
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Does Rent Control Turn Tenants Into NIMBYs?
(with Anselm Hager and Robert Vief). Forthcoming, Journal of Politics.
[Abstract]
Affordable housing is a key challenge of the 21st century. A pivotal driver of growing housing prices is
residents' opposition to construction, a phenomenon known as NIMBYism ("Not In My Backyard"). To make
housing more
affordable, city governments are increasingly implementing rent control policies. Does rent control—by
making
tenants more likely to stay in their apartments—spark NIMBYism and thus exacerbate the housing crisis? We
study
the case of Berlin, which recently passed a sweeping rent control law. Leveraging two discontinuities in the
policy, we show that rent control made tenants less NIMBY. Specifically, tenants in rent-controlled
apartments
became more likely to approve of local-level construction and immigration, compared to tenants in
non-rent-controlled apartments. We argue that the decline in NIMBYism is likely due to an economic channel.
Tenants in urban centers associate construction and immigration with displacement pressures and
gentrification.
Rent control alleviates these concerns by providing financial and residential security.
-
GERDA: The German Election Database
(with Vincent Heddesheimer, Florian Sichart, and Andreas Wiedemann). 2025. Scientific Data, 12: 618.
[Abstract]
Elections are the key mechanism through which voters hold elected officials accountable. The partisan
composition of local, state, and federal governments, in turn, shapes policy choices and public goods
provision. Yet studying representation, government responsiveness, and partisan politics across multiple
levels of government—especially at the local level—has been difficult due to inconsistently reported,
incomplete, or insufficiently harmonized election data at small geographic scales. This paper introduces
GERDA (https://www.german-elections.com/), a panel dataset of local, state, and federal election results in
Germany at the municipality level spanning the past three decades. GERDA includes turnout and vote shares
for all major parties and resolves challenges arising from municipal boundary changes and joint mail-in
voting districts, yielding a consistent panel of municipalities in their 2021 boundaries. We also provide
municipal and county boundary shapefiles to facilitate spatial analyses. Our dataset enables new research on
partisan politics, policy responsiveness, and political representation at fine-grained geographic scales and
over time.
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Local Newspaper Decline and Political Polarization in
Multi-Party Systems
(with Fabio Ellger, Sascha Riaz, and Philipp Tillmann). 2024. British Journal of Political Science, 54
(4): 1256-1275.
[Abstract]
How does the decline of local news affect political polarization? We provide novel panel evidence on this
question
in a multi-party setting. In particular, we shed light on the link between newspaper exits, media
consumption, and
ultimately electoral behavior. To study the aggregate relationship between local news exits and
polarization, we
rely on a unique panel of all German local newspapers between 1980 and 2009. In addition, we precisely trace
individual-level mechanisms by drawing on an annual media consumption survey of more than 670,000
respondents over
three decades. Using a difference-in-differences design, we demonstrate that local newspaper exits increase
electoral polarization, which aligns with evidence from the American context. Going beyond prior work, we
then
document that local news exits increase polarization because affected constituents substitute local news
with
national tabloid news. Finally, we show that local news exits increase politicization and partisanship at
the
individual level.
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Wealth of Tongues: Why Peripheral Regions Vote for the
Radical Right in Germany
(with Daniel Bischof and Daniel Ziblatt). 2024. American Political Science Review, 118 (3): 1480–1496.
[Abstract]
[Preprint]
Why is support for the radical right higher in some geographic locations than others? This paper argues that
what
is frequently classified as the "rural" bases of radical right support in previous research is in part the
result
of something different: communities that were in the historical "periphery" in the center-periphery
conflicts of
modern nation-state formation. Inspired by a classic state-building literature that emphasizes the
prevalence of a
"wealth of tongues" (Weber 1976)—or nonstandard linguistic dialects in a region—as a definition of the
periphery,
we use data from more than 725,000 geo-coded responses in a linguistic survey in Germany to show that voters
from
historically peripheral geographic communities are more likely to vote for the radical right today.
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Refugee Labor Market Access
Increases Support for Migration
(with Anselm Hager and Sascha Riaz). 2024. Comparative Political Studies, 57 (5): 749–777.
[Abstract]
Does the economic integration of refugees affect public attitudes toward migration? We assess this pertinent
question by examining a policy change in Germany, where the government significantly eased labor market
access for
refugees in the majority of the country. Using administrative employment data, we show that the policy led
to a
substantial increase in refugee employment, while natives' wages and employment rates remained unaffected.
The
policy also had a positive effect on natives' attitudes toward migration. Voters exposed to more refugees in
the
labor market were two percentage points more likely to vote for pro-migration parties across both state and
federal elections. Additional survey analyses suggest that our results are driven by positive native-refugee
interactions in the workplace.
-
Natural Disasters and Green Party
Support
(with Sascha Riaz). 2024. Journal of Politics, 86 (1): 241-256.
[Abstract]
[Preprint]
A growing literature shows that extreme weather events induce pro-environment attitudes. We examine the
political
effects of a severe flood shortly before the 2021 German federal election. Drawing on about 600,000 survey
responses and electoral data, we assess how flooding affected (i) the perceived salience of climate change,
(ii)
self-reported Green Party support, and (iii) Green Party voting in federal elections. We find that even
severe
local flooding had little to no effect on these outcomes. Additional evidence supports two mechanisms
underlying
this finding: nationwide rather than local effects of severe disasters, and voter demands for disaster
relief
rather than climate change prevention. We test the former mechanism using a regression discontinuity design
and
find that the flood increased nationwide Green Party support, although this effect persists for only two
weeks.
Our results shed new light on the precise duration and geographic scope of the political effects of natural
disasters.
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Government Spending and Voting Behavior
(with Anselm Hager). 2024. World Politics, 76 (1): 88-124.
[Abstract]
Does government spending on public goods affect the vote choice of citizens? On the one hand, voters have
been
characterized as "fiscal conservatives" who may turn toward conservative parties when government spending
goes up.
On the other hand, increased spending may signal that the economy is doing well, which makes progressive
parties a
more viable option. To adjudicate between both hypotheses, this paper draws on a natural experiment, which
created
exogenous variation in government spending. A discontinuity in the 2011 German census meant that some
municipalities saw an unforeseen increase in budgets. Using a regression discontinuity design, we show that
the
increase in budgets and subsequent spending on public goods benefited left-leaning parties, but had no
effect on
incumbent support. To parse out the causal channel, we rely on panel evidence and demonstrate that treated
residents viewed their economic situation more favorably, which led them to espouse progressive parties.
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Local News Monopolies Increase
Misperceptions about Immigration
(with Sascha Riaz). 2023. Journal of Ethnic and Migration Studies, 49(17): 4536-4558.
[Abstract]
[Preprint]
We examine how local news monopolies affect misperceptions about the size of the immigrant population in
Germany.
We propose a theoretical framework in which heterogeneous information from different local news outlets
diffuses
through social interactions. We posit that indirect exposure to information from multiple sources leads to
more
accurate beliefs in competitive markets. To causally identify the effect of local news monopolies on
misperceptions, we exploit overlapping newspaper coverage areas as a source of exogenous variation in the
number
of available outlets. We estimate that local news monopolies increase misperceptions about the size of the
local
immigrant population by about four percentage points. We demonstrate that the effect of media monopolies
hinges on
social interactions. For individuals with fewer close social contacts, misperceptions remain unaffected by
local
news monopolies. Our results suggest that consolidation in the market for news decreases constituents'
knowledge
about critical policy issues.
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Freedom of Movement Restrictions Inhibit
the Psychological Integration of Refugees
(with Sascha Riaz). 2022. Journal of Politics, 84(4): 2288-2293.
[Abstract]
[Preprint]
How do freedom of movement restrictions affect refugee integration? While a growing body of research studies
the
initial spatial allocation of refugees, there is little causal evidence on subsequent policies that restrict
residential mobility. We study a contentious law in Germany, which barred refugees from moving to a location
different from the one they were randomly assigned to. To identify the causal effect of the movement
restriction
on integration, we utilize a sharp date cutoff that governs whether refugees are affected by the policy. We
demonstrate that restricting freedom of movement had pronounced negative effects on refugees' sense of
belonging
in Germany while increasing identification with their home countries. In addition, the policy decreased
engagement
in a variety of social activities. Our findings suggest that discriminatory policies send a negative signal
about
the inclusiveness of the host society and thereby reduce the psychological integration of refugees.
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Locked
Out of College: When Admissions Bureaucrats Do and Do Not Discriminate
(with Jacob Brown). 2022. British Journal of Political Science, 52 (3): 1436-1446.
[Abstract]
[Preprint]
How does a criminal record shape interactions with the State and society? We present evidence from a
nationwide
field experiment, showing that prospective applicants with criminal records are about five percentage points
less
likely to receive information from college admission offices. However, we demonstrate that bias does not
extend to
race. There is no difference in response rates to Black and White applicants. We further show that bias is
all but
absent in public bureaucracies, as discrimination against formerly incarcerated applicants is driven by
private
schools. Examining why bias is stronger for private colleges, we demonstrate that the private-public
difference
persists even after accounting for college selectivity, socio-economic composition, and school finances.
Moving
beyond the measurement of bias, we evaluate an intervention aimed at reducing discrimination: whether an
email
from an advocate mitigates bias associated with a criminal record. However, we find no evidence that
advocate
endorsements decrease bureaucratic bias.
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Does Public Opinion Affect Political
Speech?
(with Anselm Hager). 2020. American Journal of Political Science, 64 (4): 921-937.
[Abstract]
Does public opinion affect political speech? Of particular interest is whether public opinion affects (i)
what
topics politicians address and (ii) what positions they endorse. We present evidence from Germany where the
government was recently forced to declassify its public opinion research, allowing us to link the content of
the
research to subsequent speeches. Our causal identification strategy exploits the exogenous timing of the
research's dissemination to cabinet members within a window of a few days. We find that exposure to public
opinion
research leads politicians to markedly change their speech. First, we show that linguistic similarity
between
political speech and public opinion research increases significantly after reports are passed on to the
cabinet,
suggesting that politicians change the topics they address. Second, we demonstrate that exposure to public
opinion
research alters politicians' substantive positions in the direction of majority opinion.
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Do Inheritance Customs Affect
Political and Social Inequality?
(with Anselm Hager). 2019. American Journal of Political Science, 63 (4): 758-773.
[Abstract]
Why are some societies more unequal than others? The French revolutionaries believed unequal inheritances
among
siblings to be responsible for the strict hierarchies of the ancien regime. To achieve equality, the
revolutionaries therefore enforced equal inheritance rights. Their goal was to empower women and to
disenfranchise
the noble class. But do equal inheritances succeed in leveling the societal playing field? We study
Germany—a
country with pronounced local-level variation in inheritance customs—and find that municipalities that
historically equally apportioned wealth, to this day, elect more women into political councils and have
fewer
aristocrats in the social elite. Using historic data, we point to two mechanisms: wealth equality and
pro-egalitarian preferences. In a final step, we also show that, counterintuitively, equitable inheritance
customs
positively predict income inequality. We interpret this finding to mean that equitable inheritances level
the
playing field by rewarding talent, not status.
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The Green Transition and Political Polarization Along
Occupational Lines
(with Vincent Heddesheimer and Erik Voeten). Revise & Resubmit, American Political Science Review.
[Abstract]
Green transition policies set long-term targets to reduce carbon emissions and other pollutants, posing a
threat
to workers in polluting occupations and communities reliant on these occupations. Can far-right parties
attract
voters who anticipate losing from the green transition? We explore this in Germany, which has ambitious
green
policies and a large workforce in polluting occupations. The far-right AfD started campaigning as the only
party
opposing green transition policies in 2016. Using a difference-in-differences design, we show AfD support
increased in counties with more polluting jobs after this platform change. A panel survey further
demonstrates
that individuals in these occupations also shifted towards the AfD. Probing mechanisms, we find suggestive
evidence that growing far-right support is due to changing perceptions of social stigma and lower status.
Our
results highlight the need for a new research agenda on a backlash against the normative dimension of the
green
transition.
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Bureaucratic Inertia or Legal Responsiveness? College
Admissions Officers' Behavior Before and After the Affirmative Action Ban
(with Jacob Brown and Hunter Rendleman).
[Abstract]
How do street-level bureaucrats respond when courts reshape public policy? The 2023 Supreme Court decision
striking down affirmative action altered the legal framework around college admissions, prompting
speculation about its implications for administrative behavior and minority representation on campus. Yet
existing work offers limited evidence on whether -- and how -- bureaucrats adapt to judicial interventions.
We investigate whether college admissions officers shift behavior in response to the ruling. We report
results from two original field experiments with over 3,000 U.S. admissions offices. In Study 1, we
recontact institutions from a 2018 audit testing responsiveness to Black and White applicants, enabling a
pre-post comparison. In Study 2, we randomly vary applicant race (Asian, Black, White) and references to the
Court's decision. Across both studies, we find no evidence of racial bias, even when the ruling is salient.
Together, these null results suggest limits to the judiciary's influence on bureaucratic behavior.
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Place-Based Policies, Local Responses, and Electoral
Behavior
(with Vincent Heddesheimer and Andreas Wiedemann).
[Abstract]
Place-based economic policies are increasingly seen as instruments to counter political discontent in
economically-depressed regions. Do regional investment subsidies affect electoral behavior? We evaluate this
question in the context of Germany's largest regional investment program. Our identification strategy
leverages a
2014 subsidy rate cut for manufacturing firms that—due to EU rules—was exogenous to local economic trends.
The
subsidy cut reduced voting for the far-right AfD and increased support for the incumbent Christian
Democrats. We
then demonstrate that subsidy cuts trigger two counterreactions: local firms invest more in human capital
and
local governments invest more in infrastructure and public goods. We argue that these dynamics signal to
voters
that local governments are responsive and care about their constituents, undermining populist appeals. Our
findings suggest that political consequences of place-based policies—and austerity more broadly—cannot be
understood without considering counteractions by local firms and governments.
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Long-run Political Change after the Great Recession
(with Vincent Heddesheimer). (draft available upon request)
-
Political and Social Correlates of Covid-19
Mortality
(with Constantin Manuel Bosancianu, Macartan Humphreys, Sampada KC, Nils Lieber, and Alex Scacco).
[Abstract]
Do political and social features of states help explain the evolving distribution of reported Covid-19
deaths? We
identify national-level political and social characteristics that past research suggests may help explain
variation in a society's ability to respond to adverse shocks. We highlight four sets of arguments—focusing
on (1)
state capacity, (2) political institutions, (3) political priorities, and (4) social structures—and report
on
their evolving association with cumulative Covid-19 deaths. After accounting for a simple set of
Lasso-chosen
controls, we find that measures of government effectiveness, interpersonal and institutional trust,
bureaucratic
corruption, and ethnic fragmentation are currently associated in theory-consistent directions. We do not,
however,
find associations between deaths and many other political and social variables that have received attention
in
public discussions, such as populist governments or women-led governments. Currently, the results suggest
that
state capacity is more important for explaining Covid-19 mortality than government accountability to
citizens,
with potential implications for how the disease progresses in high-income versus low-income countries. These
patterns may change over time with the evolution of the pandemic, however.