Joseph Engelberg

About

Dr. Lauren Eckhardt is the full-time director of the Atkinson Behavioral Research Lab at UC San Diego's Rady School of Management, where she oversees behavioral research focused on how individuals form judgments and make decisions in business contexts. The lab, established in 2013 with support from former UC San Diego Chancellor Richard Atkinson, supports experiments involving a participant pool of over 2,000 undergraduates each quarter, primarily for class credit. Dr. Eckhardt collaborates with faculty and graduate students, employing various methodologies to generate impactful insights that shape business practices across industries. The lab's research is integral to the Rady community, fostering innovation in behavioral science. Dr. Eckhardt manages the operational aspects of the lab, including study scheduling, facilities, and compliance requirements such as IRB approval and CITI training. She also supervises undergraduate research assistants and volunteers, promoting experiential learning and research engagement among students. Her leadership ensures the lab's role as a cornerstone of behavioral research at UC San Diego, contributing to the advancement of understanding decision-making processes in business environments.

Research topics

• Economics
• Financial economics
• Computer Security
• Political Science
• Business
• Monetary economics
• History
• Computer Science
• Mathematics
• Geography

Selected publications

• Echo Chambers

  Review of Financial Studies · 2022 · 177 citations

  Abstract We find evidence of selective exposure to confirmatory information among 400,000 users on the investor social network StockTwits. Self-described bulls are five times more likely to follow a user with a bullish view of the same stock than are self-described bears. Consequently, bulls see 62 more bullish messages and 24 fewer bearish messages than bears do over the same 50-day period. These “echo chambers” exist even among professional investors and are strongest for investors who trade o…

  PublisherDOI

• Does Partisanship Shape Investor Beliefs? Evidence from the COVID-19 Pandemic

  The Review of Asset Pricing Studies · 2020 · 135 citations

  Abstract We use party-identifying language—like “liberal media” and “MAGA”—to identify Republican users on the investor social platform StockTwits. Using a difference-in-difference design, we find that partisan Republicans remain relatively unfazed in their beliefs about equities during the COVID-19 pandemic, while other users become considerably more pessimistic. In cross-sectional tests, we find Republicans become relatively more optimistic about stocks that suffered the most during the COVID-…

  DOI

• Do Cross-Sectional Predictors Contain Systematic Information?

  Journal of Financial and Quantitative Analysis · 2022 · 43 citations

  1st authorCorresponding

  Abstract Firm-level variables that predict cross-sectional stock returns, such as price-to-earnings and short interest, are often averaged and used to predict market returns. Using various samples of cross-sectional predictors and accounting for the number of predictors and their interdependence, we find only weak evidence that cross-sectional predictors make good time-series predictors, especially out-of-sample. The results suggest that cross-sectional predictors do not generally contain system…

  PublisherOA PDFDOI

• The Partisanship of Financial Regulators

  Review of Financial Studies · 2023-04-21 · 41 citations

  article1st author

  Abstract We analyze the partisanship of Commissioners at the SEC and Governors at the Federal Reserve Board. Using recent advances in machine learning, we identify partisan phrases in Congress, such as “red tape” and “climate change,” and observe their usage among regulators. Although the Fed has remained relatively nonpartisan throughout our sample period (1930–2019), we find that partisanship among SEC Commissioners rose to an all-time high during the 2010-2019 period, driven by more-partisan…

  PublisherDOI

• Partisan Entrepreneurship

  National Bureau of Economic Research · 2022-07-01 · 20 citations

  reportOpen access1st authorCorresponding
  PublisherDOI

Frequent coauthors

• William Mullins

  University of California, San Diego

  45 shared

• Zhi Da

  39 shared

• Pengjie Gao

  31 shared

• J. Anthony Cookson

  University of Colorado Boulder

  30 shared

• Christopher A. Parsons

  University of Southern California

  25 shared

• Jonathan Brogaard

  19 shared

• Edward Dickersin Van Wesep

  19 shared

• Jared Williams

  Texas Tech University

  16 shared

Labs

• Atkinson Behavioral Research LabPI

Awards & honors

• The Atkinson Behavioral Research Lab received foundational s…

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