Most teenagers spend several hours per day on social media. We provide a large-scale investigation of the relationship between social media daily usage and body dissatisfaction among a sample of more than 50,000 15 y.o. students. This relation is positive and large for girls - higher use of...

We quantify the effects of others' adoptions and word-of-mouth (volume and valence) on consumers' product adoption decisions. We differentiate between the effects of word-of-mouth and observed adoptions from friends ("personal network") and the effects of word-of-mouth and observed adoptions...

Social media is an important source of product information for many users. Marketing in social media is based not only on building a community around the brand, but social media is used as a way to reach a defined group of users with a marketing message. These users are shown content, including...

Does advertising revenue increase or diminish content differentiation in media markets? This paper shows that an increase in the technically feasible number of ad breaks per video leads to an increase in content differentiation between several thousand YouTube channels. I exploit two...

This paper studies the effect of advertising on content differentiation on YouTube, the second-most visited website in the world. I demonstrate that an exogenous increase in the feasible advertising quantity leads to a considerable decrease in the YouTubers' probability to duplicate mainstream...

We study peer influence in an online social network on a platform where consumers purchase music albums. They can follow their peers and become informed about their consumption choices. In particular, we are interested in how this affects consumers’ exploration of new music that exhibits...

As much as forty percent of social media users have been harassed online, but there is scarce causal evidence of how toxic content impacts user engagement and whether it is contagious. In a pre-registered field experiment, we recruited participants to install a browser extension, and randomly...

This research provides an empirical test of the “Twitter effect,” which postulates that microblogging word of mouth (MWOM) shared through Twitter and similar services affects early product adoption behaviors by immediately disseminating consumers’ post-purchase quality evaluations. This is...

We study peer influence in an online social network on a platform where consumers purchase music albums. They can follow their peers and become informed about their consumption choices. In particular, we are interested in how this affects consumers' exploration of new music that exhibits...

The study analyzed the various dimensions of customers’ opinions about social media advertisement on buying behaviour. The total number of questionnaires distributed in the self-administered survey was 750 sets. A purposive sampling method is applied in this research for selecting the sample....