The outbreak of COVID-19 has caused huge disruptions to the world economy. As a number of countries make progress in containing this outbreak, some of them have started to reopen their economy. We study the curves of recovery after reopening the economy, using a unique real-time dataset of daily...

While existing research has examined the role of social influence on various user behavior, such as product adoption, reviews and purchases, there is a lack of studies on how social influence interacts with inherent non-social cues, such as inherent attributes. In this study, we attempt to fill...

Most of the empirical evidence on social advertising effectiveness focuses on a single product at a time. As a result, little is known about how the effectiveness of social advertising varies across product categories or product characteristics. We therefore collaborated with a large online...

Social media not only is a new channel to obtain financial market information but also becomes the venue for investors to share and exchange investment ideas. We examine the performance consequences of providing monetary incentive to both existing and new amateur analysts on social media and its...

Does fake news in financial markets attract more investor attention and have a significant impact on stock prices? We use the SEC crackdown of stock promotion schemes in April 2017 to examine investor attention and the stock price reaction to fake news articles. Using data from Seeking Alpha, we...

This article studies whether and how mobile Internet networks compete with traditional fixed-line Internet networks by examining the how the quality of local fixed-line Internet service influences mobile Internet adoption and use. An empirical analysis shows that local fixed-line Internet speed...

We study how individual smartphone users dynamically use mobile data every day facing limited monthly data plans. Employing a unique data set on users' daily data usage from a leading mobile carrier in China, we develop a dynamic structural model in which an individual user maximizes her data...