Dissemination, Direct-Access Information Technology and Information Asymmetry; firms that are not highly visible can disseminate firm-initiated news via Twitter to increase liquidity and market depth
April 3, 2013 Leave a comment
Dissemination, Direct-Access Information Technology and Information Asymmetry
Elizabeth Blankespoor Stanford University – Graduate School of Business
Gregory S. Miller University of Michigan – Ross School of Business
Hal D. White University of Michigan – Ross School of Business
January 25, 2013
Abstract:
Firm disclosures often reach only a portion of investors, which results in information asymmetry among investors, and therefore lower market liquidity. This issue is particularly salient for firms that are not highly visible, as they tend not to receive broad news dissemination via traditional intermediaries, such as the press. This paper examines whether firms can reduce information asymmetry by using a new information technology to increase the breadth of dissemination of firm disclosures. Using a sample of technology firms, we examine the impact of using Twitter to send market participants links to press releases that are provided via traditional disclosure methods. We find this additional dissemination of firm-initiated news via Twitter is associated with lower abnormal bid-ask spreads and greater abnormal depths, consistent with a reduction in information asymmetry. Moreover, this result holds mainly for firms that are not highly visible, consistent with them being in greater need of this additional dissemination channel. We also examine the impact of dissemination on a volume-based measure of liquidity, and find that dissemination is positively associated with liquidity.
