This paper investigates the causal impact of the media in financial markets by exploiting exogenous media blackouts resulting from national newspaper strikes in several countries. Trading volume falls 14% on strike days. Stock volatility is also reduced, especially within the day, during which...

This research evaluates if the media coverage from newspaper affect Indonesia's securities markets in the way that the more coverage a stock get, the lower the return will be and the less coverage, or even no coverage a stock get, the higher the return will be. If it is found, then the causes...

This paper investigates the causal impact of the media in financial markets by exploiting exogenous media blackouts resulting from national newspaper strikes in several countries. Trading volume falls 14% on strike days. Stock volatility is also reduced, especially within the day, during which...

We study how the social transmission of public news influences investors' beliefs and securities markets. Using an extensive dataset to measure investor social networks, we find that earnings announcements from firms in higher-centrality locations generate stronger immediate price and trading...

In this paper we investigate the relationship between news sources and media firms. Although empirically important, this channel for supply-driven media bias has not previously been analyzed in economics literature. We model the relationship as an informal contract based on trust and punishment,...

We study the impact of bots on social learning in a social network setting. Regular agents receive independent noisy signals about the true value of a variable and then communicate in a network. They na¨ıvely update beliefs by repeatedly taking weighted averages of neighbors' opinions. Bots...