Who are the users of ChatGPT? Implications for the digital divide from web tracking data. - Celina Kacperski; Roberto Ulloa; Denis Bonnay; Juhi Kulshrestha; Peter Selb; Andreas Spitz (CoRR, 2023)

Self-directed online information search can affect policy attitudes: a randomized encouragement design with digital behavioral data. - Celina Kacperski; Roberto Ulloa; Peter Selb; Andreas Spitz; Denis Bonnay; Juhi Kulshrestha (CoRR, 2025)