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David DeFranza

@ddefranza.bsky.social

Assistant Professor of Marketing at University College Dublin. Interested in marketing, consumer psychology, and computational social science. daviddefranza.com

Posts Replies Media

David DeFranza @ddefranza.bsky.social · 27/04/2026

Our new paper finds that not all misinformation sharers face equal consequences. On Reddit, low-status users get downvoted and challenged. High-status users see engagement hold or even increase. Reputation may matter more than accuracy. (Open access) doi.org/10.1093/jcmc/zmag005

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David DeFranza @ddefranza.bsky.social · 18/03/2026

New paper! We find that people perceive AI as reason-driven and humans as emotion-driven, and that this belief shapes decision-making. In an economic game, those facing an AI made more rational choices than those facing a human. #AI #DecisionMaking #BehavioralScience doi.org/10.3389/fcom...

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David DeFranza @ddefranza.bsky.social · 09/01/2026

Struggling to fit a Zero-Inflated LASSO with a large-N dataset? My new package, gradLasso, uses optimized gradient descent which scales efficiently and includes λ CV, stability selection, bootstrapped coefficients and confidence intervals, and more. cran.r-project.org/package=grad... #rstats

Cross-validated error for lambda selection plot generated by gradLasso.

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David DeFranza @ddefranza.bsky.social · 03/12/2024

I recently contributed to the conversation on #AIInfluencers. Are these digital personas reshaping happiness in the modern world? Spoiler: I don't think we know yet. www.thenationalnews.com/future/techn... #AI #AIEthics #SocialMediaEthics #DigitalLife

thenationalnews.com

Are AI influencers the latest feature of modern life to make us unhappy? | The National

Rather than pay real-life influencers to promote their products, some companies are turning to artificially generated people

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