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(Don't) Walk This Way: The Econometrics of Crosswalks

Millimet, Daniel L. - 2024

units are not nested, a crosswalk specifying how the units from one data source are allocated to the units of the other is … attention of econometricians. Here, I show that use of an incorrect crosswalk induces measurement error that is necessarily … nonclassical and can be consequential. I discuss and illustrate the ramifications of using a flawed crosswalk, present two …

Persistent link: https://www.econbiz.de/10015061988

The impact of social media on belief formation

Schwarz, Marco - 2017

Social media are becoming increasingly important in our society and change the way people communicate, how they acquire information, and how they form beliefs. Experts are concerned that the rise of social media may make interaction and information exchange among like-minded individuals more...

Persistent link: https://www.econbiz.de/10011762816

Persistent leverage in portfolio sorts : an artifact of measurement error?

Mueller, Michael - 2014

that trade-off theory-based empirical proxies that are observed with error offer an alternative explanation for the …

Persistent link: https://www.econbiz.de/10010441180

Why echo chambers are useful

Jann, Ole; Schottmuller, Christoph - 2019

Why do people appear to forgo information by sorting into “echo chambers”? We construct a highly tractable multi-sender, multi-receiver cheap talk game in which players choose with whom to communicate. We show that segregation into small, homogeneous groups can improve everybody’s...

Persistent link: https://www.econbiz.de/10012265620

Political competition : how to measure party strategy in direct voter communication using social media data?

Sturm, Silke - 2019

Political competition, party strategy and communication in the era of social media are growing issues. Due to the increasing social media presence of parties and voters alike, direct communication is more important for party competition. This paper aims to improve the methodological approach...

Persistent link: https://www.econbiz.de/10012007046

A comment on "Motivated Errors" by Exley and Kessler (2024)

Auer, Tobias; Ulasik, Maria; Holzmeister, Felix - 2024

This report evaluates the computational reproducibility and analytical robustness of Exley and Kessler's (2024) investigation into "motivated errors," which suggests that individuals may rationalize selfish behavior by attributing their errors to confusion. Using the original data and code, we...

Persistent link: https://www.econbiz.de/10015073585

Vax populi : the social costs of online vaccine skepticism

Giaccherini, Matilde; Kopinska, Joanna; Rovigatti, Gabriele - 2022 - Original version: December 2022, this version: March 2023

This paper quantiﬁes the impact of online vaccine skepticism on pediatric vaccine uptake and health outcomes. We propose a novel methodology that combines Natural Language Processing and an instrumental variable strategy that leverages the intransitivity of the social network's connections. By...

Persistent link: https://www.econbiz.de/10013475264

Politics in the Facebook era evidence from the 2016 US presidential elections

Liberini, Federica; Redoano, Michela; Russo, Antonio; … - 2020

Through social media, politicians can personalize their campaigns and target specific groups of voters with an unprecedented precision. We assess the effects of such political micro-targeting by exploiting daily advertising prices on Facebook during the 2016 US presidential campaign. We measure...

Persistent link: https://www.econbiz.de/10012206082

Politicized scientists : credibility cost of political expression on Twitter

Alabrese, Eleonora; Capozza, Francesco; Garg, Prashant - 2025

As social media becomes prominent within academia, we examine its reputational costs for academics. Analyzing Twitter posts from 98,000 scientists (2016-22), we uncover substantial political expression. Online experiments with 4,000 U.S. respondents and 135 journalists, rating synthetic academic...

Persistent link: https://www.econbiz.de/10015416094

COVID-19 severity: a new approach to quantifying global cases and deaths

Millimet, Daniel L.; Parmeter, Christopher F. - 2021

Accurate counts of cases and deaths are critical for devising an optimal pandemic response. Yet, as the COVID-19 pandemic has progressed, so too has the recognition that cases and deaths have been underreported, perhaps vastly so. Here, we present an econometric strategy to estimate the true...

Persistent link: https://www.econbiz.de/10012431859