Can social media marketing lead to abnormal portfolio returns?

BANK S., Erdoğan Yazar E., Sivri U.

EUROPEAN RESEARCH ON MANAGEMENT AND BUSINESS ECONOMICS, vol.25, no.2, pp.54-62, 2019 (SSCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 2
  • Publication Date: 2019
  • Doi Number: 10.1016/j.iedeen.2019.04.006
  • Journal Name: EUROPEAN RESEARCH ON MANAGEMENT AND BUSINESS ECONOMICS
  • Journal Indexes: Social Sciences Citation Index (SSCI), Scopus
  • Page Numbers: pp.54-62
  • Keywords: Social media marketing, Microblogging, Twitter, Shareholder return, CAPM, Portfolio analysis, TWITTER, DISSEMINATION, SENTIMENT, COMPANIES, SELECTION, TWEETS, MODEL, B2B
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

This study tests the impact of usage of Twitter as a microblogging service provider on shareholders returns and abnormal returns. In accordance with this purpose, two portfolios were created based on measurement of whether firms had a Twitter account and, if so, their number of followers and tweets and the increase in the number of followers. The returns from these portfolios indicate that better Twitter performance according to these metrics does not provide any significant increases in the abnormal returns of shareholders. Nevertheless, the market betas of greater than 1 observed in the related portfolios have revealed that these portfolios are more risky than alternative portfolios. (C) 2019 AEDEM. Published by Elsevier Espana, S.L.U.