What the projects on this page share is a measurement problem: the things that matter most in politics are the hardest to count. Two programs follow from it. The first studies the segregation of political life — the uneven allocation of attention and attachment across group lines, from citizens’ private news diets to national publics and the networks of elites and experts. The second, Conceptualization, Measurement & Validity, builds and tests the instruments the first one needs — because a claim about segregation is only as good as the instrument behind it.
The map in the sidebar travels the same terrain: every node is a page.
One concept, observed at three levels and two scopes. The levels are the mechanism: elites and media set the menu, individual choices respond, and those choices aggregate into structures nobody designed. The dissertation runs the full domestic column, paper by paper; the cross-national corpus runs the other.
| Domestic — American politics | Transnational — international relations | |
|---|---|---|
| Supply & cues (macro) | Attention setting — does elite conflict capture private attention, or chase it? (Diss. P3) Congress & technology (ideological) | Anti-Westernism & status-seeking in leaders' speeches (affective) |
| Sorting & structures (meso) | Cultural spillover — does partisan attention sort everyday life? (Diss. P2 · cultural) | Epistemic elite networks (network) — transnational in reach, segregated on national lines |
| Selection & attention (micro) | Selective attention — what holds a reader once content arrives (Diss. P1 · informational/affective) | Anti-Americanism in citizens' discourse (affective) |
Families: Attention Segregation · Cross-National Segregation · Elite & Expert Segregation
The second program treats measurement as its own object, at every stage of the pipeline — from what a concept means, to the instruments that score it, to whether the scores can be trusted.
| Stage | Work | What it does |
|---|---|---|
| Conceptualization | What Do Experts Mean by Polycrisis? | What a concept is, before anyone scores it — an expert community caught mid-formation |
| Measurement | Network Shocks · the dissertation's segregation indices · the classification pipelines behind Congress and anti-Americanism | Building instruments where none exist — impulse responses for relational event models, duration-weighted indices, framing classifiers |
| Validity | Stance Is Not a Construct · Political Geometry | Testing whether LLM annotations carry the construct — and opening the instrument itself to see what it represents |
Families: Conceptualization, Measurement & Validity · Networks & Statistics · AI Interpretability & Evaluation
Selected & recent work
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Stance Is Not a Construct: LLM Validity Gaps in Annotation Working Paper
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How Do Networks Respond to Shocks? Working Paper
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The Political Geometry of Ideology in LLMs Working Paper
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Who Talks to Whom among Transnational Epistemic Elites Online? Working Paper
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What Drives Anti-Americanism in Turkish Social Media? Working Paper
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How Has Congress Framed Technology? Thirty Years of Floor Speeches In Prep
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What Do Experts Mean by Polycrisis? In Prep
The full record, including talks and earlier publications, is in the CV (PDF). How these interests evolved over time is in the research story.