Despite annual expenditures on public relations exceeding $19.42 billion, U.S. businesses lack practical guidance about the effectiveness of publicity in mass media. Here, we assemble a rich and novel data set to gauge the impact of news reports on consumer sign-ups with the U.S. Do Not Call...

Knowledge sharing is common on the Internet. In this paper, we study the effect of introducing monetary incentives for hosting live talks on users' contribution to non-rewarded activity of answering questions on the same online question-and-answer platform. Using a combination of coarsened exact...

Most previous research into the digital divide has relied on archival or primary surveys of a cross-sectional nature. Their findings are sensitive to endogeneity and cannot identify variations in the digital divide over time. Other research focused on the digital provide, focusing on the impact...

In this paper, we investigate the impact of economic incentives on the international supply of big-screen movies. More particularly, we also study the impact of a 1998 increase in the term of copyright on U.S. movie production