One of today's most controversial and consequential issues is whether the global uptake of
digital media is causally related to a decline in democracy. We conducted a systematic …

How do the Internet and social media affect political outcomes? We review empirical
evidence from the recent political economy literature, focusing primarily on work that …

We investigated the effects of Facebook's and Instagram's feed algorithms during the 2020
US election. We assigned a sample of consenting users to reverse-chronologically-ordered …

We provide quasi-experimental estimates of the impact of social media on mental health by
leveraging a unique natural experiment: the staggered introduction of Facebook across US …

Does the consumption of ideologically congruent news on social media exacerbate
polarization? I estimate the effects of social media news exposure by conducting a large …

UPDATED WITH A NEW PREFACE LONGLISTED FOR THE BAILLIE GIFFORD PRIZE
LONGLISTED FOR THE FINANCIAL TIMES AND SCHRODERS BUSINESS BOOK OF THE …

Background. Professional Madrasah Principals in the new paradigm of education
management will have a positive impact and fundamental changes in the reform of the …

The rise of social media has provoked both optimism about potential societal benefits and
concern about harms such as addiction, depression, and political polarization. In a …

As authoritarian governments around the world develop sophisticated technologies for
controlling information, many observers have predicted that these controls would be …

This paper investigates the link between social media and hate crime. We show that
antirefugee sentiment on Facebook predicts crimes against refugees in otherwise similar …