We present an online experiment in which we investigate the impact of perceived social acceptability on online hate speech, and measure the causal effect of specific interventions. We compare two types of interventions: counter-speaking (informal verbal sanctions) and censoring (deleting hateful...

The aim of this paper is to study the empirical phenomenon of rating bubbles, i.e. clustering on extremely positive values in e-commerce platforms and rating web sites. By means of a field experiment that exogenously manipulates prior ratings for a hotel in an important Italian tourism...

Biases in online platforms pose a threat to social inclusion. We examine the influence of a novel source of bias in online philanthropic lending, namely that associated with religious differences. We first propose a measure of religion distance between pairs of countries, which we incorporate...

Online social referral incentive systems help attract new customers to commercial websites by leveraging existing customers’ social networks. Designing an appropriate referral incentive system allows websites to increase their customer base and enhance sales. This study integrates ultimatum...