PolMeth XXXVIII Poster Session
Political Methodology Society
The 2021 Annual Summer Meeting of the Political Methodology Society will take place online on July 13-16.
More info: https://polmeth2021.com/
Tracks
▼ 01. Poster Panel 1: Tuesday 4:00-5:30pm EST Back to top
Choosing Imputation Models
Moritz Marbach
From Parties to Leaders and Back: Voting Behavior Patterns in Western Democracies 1960s-2020s
Alessio Albarello
Latent Factor Approach to Missing not at Random
Naijia Liu
Near-Optimal Topic Models for Large Scale Text Data
Adam Breuer
The ETMs we introduce share the same rich probabilistic model as conventional topic models such as LDA. However, unlike conventional topic models, ETMs find the topics associated with each document in the text dataset that, even in the worst-case, nearly maximize the model’s a-posteriori probability, guaranteeing near-optimal results. Moreover, each topic found by an ETM has a concise and rigorous interpretation related to a single word (e.g. ‘war’). Leveraging recent results from theoretic machine learning, we show that these results are surprisingly always achievable in sublinear computation time in parallel, which means that ETMs can be applied even to massive new political text datasets containing billions of documents. Beyond their theoretic guarantees, ETM’s also consistently outperform standard LDA topic models in terms of standard measures of topic quality on a variety of canonical datasets as well as new original datasets, such as all online political ads in the US election cycle and all posts on Parler.com during the Jan. 6th attack.
Sensitivity Analysis in the Generalization of Experimental Results
Melody Huang
▼ 02. Poster Panel 2: Tuesday 4:00-5:30pm EST Back to top
A Logical Model for Predicting Minority Representation: Application to Redistricting, Voting Rights Cases, and More
Yuki Atsusaka
Understanding when and why minority candidates emerge and win in particular districts entails critical implications for redistricting and the Voting Rights Act. I introduce a quantitatively predictive logical model of minority candidate emergence and electoral success --- a mathematical formula based on deductive logic that can logically explain and accurately predict the exact probability at which minority candidates run for office and win in given districts. I show that the logical model can predict about 90% of minority candidate emergence and 95% of electoral success by leveraging unique data of mayoral elections in Louisiana from 1986 to 2016 and state legislative general elections in 36 states in 2012 and 2014. I demonstrate that the logical model can be used to answer many important questions about minority representation in redistricting and voting rights cases. All applications of the model can be easily implemented via an open-source software: logical.
In this poster, I further present three extended applications of the model to detecting racially polarized voting, measuring the level of minority descriptive representation, and evaluating the mechanical effect of electoral systems on minority representation.
Footprints of Malfeasance: A Simulation-Based Approach to Measuring Corruption in Public Spending
Gustavo Guajardo
Volatility in Party Support
Douglas Rivers, Stephanie A. Nail
The traditional of view of party alignments as being relatively stable over long periods is to some degree contradicted by voting patterns over the past half century. Groups formerly identified with one party now support the other party. States that were not too long ago safely Democratic are now Republican and vice versa. These trends extend well beyond the well-known movement of the South to Republicans and racial minorities to Democrats. At the macro (or group) level, party support is fairly volatile.
At the same time, we see high levels of stability in individual-level partisanship and little party switching between elections. Split-ticket voting has declined, there are fewer swing voters, and only a few people switch between the parties. This apparent micro-macro discrepancy is analyzed using multilevel models to estimate the magnitude and sources of change in the U.S. party system. More specifically, we estimate hierarchical models using empirical Bayes for each group using ANES data from 1976-2020 and CPS data from the same time period.
When Do Voter Files Accurately Measure Turnout? How Transitory Voter File Snapshots Impact Research And Representation
Seo-young Silvia Kim
▼ 03. Poster Panel 3: Tuesday 4:00-5:30pm EST Back to top
Discourse and Policy: Using text as data to capture elite polarization in speech
Cybele Kappos
Embedded Lexica: Extracting Topical Dictionaries from Unlabeled Corpora using Word Embeddings
Patrick Chester
Emotions and Flight from Violence: Evidence from Punjabi/English Video Archives
Aidan Milliff
Machine Assisted Coding for Event Data
Chase Bloch
▼ 04. Poster Panel 4: Wednesday 4:00-5:30pm EST Back to top
Data Visualization for Difference-in-Differences
Juraj Medzihorsky
Intersectionality and Machine Learning: Relaxing Improbable Independence Assumptions
Melina Much
Subjective Neighborhood Identification and Analysis
Cory McCartan
Voted In, Standing Out: Public Response to Immigrants' Political Accession
Guy Grossman and Stephanie Zonszein
▼ 05. Poster Panel 5: Wednesday 4:00-5:30pm EST Back to top
Causal Inference With Bundled Treatments And Moderators
Zachary Markovich
This poster fills this gap by providing a novel estimand explicitly defined in terms of such bundled variables. Specifically, I first require the researcher to specify some causal estimand, which I term the Causal Set Effect, that is defined in terms of different sets of the bundles. For example, in the bundled treatments case, this might take the form of the difference in average potential outcomes between units treated with an element of the first rather of the second of set of treatment bundles. In the bundled moderators case on the other hand, the Causal Set Effect might be defined as the difference in average treatment effects between units that received a moderator bundle in the first set rather than the second. I propose focusing on the maximum of these Causal Set Effects - an estimand I term the Maximum Causal Set Effect (MCSE). I also limit the sets of bundles considered to those which have at least probability q of occurring, where q is a researcher specified constant, so that the MCSE does not end up being dominated by unrepresentative edge cases.
I propose two estimators for this novel quantity of interest. One has a positive bias while the other has a downward bias. Together they provide bounds on the MCSE. I use this framework to analyze the effect of democratic political institutions on the likelihood of civil war onset and identify larger causal effects than have been uncovered by past researchers, speaking to the broad utility of this novel quantity of interest for applied researchers.
Causal Effect of Sending Mail-In Ballots to All Registered Voters on Voter Turnout and Composition
Yimeng Li
On the reliability of published findings using the regression discontinuity design
Drew Stommes
Structural Causal Models and Factorial Experiments: Identification Problems and Applications in Social Sciences
Guilherme Jardim Duarte
Sensitivity Analysis for Sequential Outcome Tests
Elisha Cohen
▼ 06. Poster Panel 6: Wednesday 4:00-5:30pm EST Back to top
A direct approach to understanding electoral system changes
Samuel Baltz
Reelection can Increase Legislative Cohesion: Evidence from Clientelistic Parties in Mexico
Lucia Motolinia
Studying Language Usage Evolution Using Pretrained and Non-Pretrained Embeddings
Patrick Y. Wu
Understanding Hong Kong Digital Nationalism: A Topic Network Approach
Justin Chun-ting Ho
#HongKong #Nationalism #SocialMedia #TextAsData
▼ 07. Poster Panel 7: Thursday 4:00-5:30pm EST Back to top
Autoregressive Count Models that are Trivial to Estimate
Garrett Vande Kamp and Soren Jordan
How Economic Outcomes Translate into Economic Evaluations
Jan Zilinsky
How Modeling Unpredictable Events can Improve Congressional Election Predictability
Daniel Ebanks, Jonathan N. Katz, Gary King
Detecting Coverage of Social Unrest on Telegram
Ishita Gopal
▼ 08. Poster Panel 8: Thursday 4:00-5:30pm EST Back to top
Measuring Candidate Ideology from Congressional Tweets and Websites
Michael Bailey
Comparative Elite Networks in the Arab World
Omer Yalcin
Constructing the Migration Crisis: Automated Text Analysis of European Newspapers 2008-2022
Michelle Reddy
Text Semantics Capture Political and Economic Narratives
Elliott Ash, Germain Gauthier, Philine Widmer
▼ 09. Poster Panel 9: Thursday 4:00-5:30pm EST Back to top
Is Depoliticized Propaganda Effective? -- Estimation of a Global Effect
Shiyao Liu
Measurement and Inference using Satellite Data in Benin
Luke Sanford
Praise from Peers Promotes Empathetic Behavior
Adeline Lo, Jonathan Renshon, Lotem Bassan-Nygate
Building Loyalty through Personal Connections: Evidence from the Spanish Empire
Marcos Salgado
▼ 10. Poster Panel 10: Friday 12:00-1:30pm EST Back to top
Scoring Mass Protests In Repressive Settings
Kimberly Turner
Temporal Validity
Kevin Munger
The Costs of Doing Research
Jane Sumner
▼ 11. Poster Panel 11: Friday 2:00-3:30pm EST Back to top
Money Complicates Things: A Mixed-mode Finite Mixture Model of Political Donors
Jay Goodliffe
Responsiveness in a Fragmented Local Politics
Bryant J. Moy
Legislative Support for Environmental Policy Innovation: An Experimental Test for Diffusion through a Cross-State Policy Network
Ishita Gopal and Bruce Desmarais
Let them eat pie: addressing the partial contestation problem in multiparty electoral contests
Ali Kagalwala, Thiago Moreira, Guy Whitten
The Importance of Dyadic Representation: Evidence from America's Opioid Epidemic
Rachel Porter
▼ 12. Poster Panel 12: Friday 2:00-3:30pm EST Back to top
Family ties: Fetching Political Dynasties Names using Text as Data
Marcus Vinícius de Sá Torres
Legislators' Sentiment Analysis Supervised by Legislators
Akitaka Matsuo and Kentaro Fukumoto
Measuring the Influence of Individual BureaucratsWith Historical Documents
Clara Suong
Sensitivity Analysis to Sample Selection Bias
Oliver Rittmann
This article extends existing approaches to sensitivity analysis to enable researchers to assess how violations of the random sampling assumption alter their estimates. The approach combines ideas from sensitivity analysis for omitted variable bias with the Heckman selection model. In the spirit of Heckman, sample selection bias is perceived as a special form of the omitted variable bias. As a consequence, tools to assess the sensitvity of estimates to violations of the no omitted variables assumption can be adjusted for the assessment of the severity of potential sample selection bias. The approach equips researchers with a tool to make educated and concrete statements about how robust their causal estimates are to violations of the random sampling assumption.
Graphical tools facilitate convenient communication of estimation sensitivity to sample selection bias. To demonstrate the approach, I present applications with simulated and empirical data.
MATHEMATICAL APPENDIX: https://www.dropbox.com/s/5r5tntakm3nh9zj/math_appendix.pdf?dl=0
The Incumbent-Challenger and the Incumbent-Runner-up Advantage: Regression Discontinuity Estimation and Bounds
Leandro De Magalhaes
▼ 13. Poster Panel 13: Friday 2:00-3:30pm EST Back to top
A Subnational Measure of Corruption in China Using News Report
Rosemary Pang
Click, click boom: Using Wikipedia metadata to predict changes in battle-related deaths
Christian Oswald, Daniel Ohrenhofer
Computational Game Theory to Study Empirical Elections
Fabricio Vasselai
A graph-theoretic approach to causal inference under interference
David Puelz