Malinin, Artem

In Essay 1, I investigate the association between CEOs’ social capital and stock price informativeness in a sample of US firms. After accounting for the fact that larger networks attract more analysts following, I find that firms with larger CEO social capital exhibit higher private information incorporation and hence more informative stock prices. Results are consistent for five different proxies for stock price informativeness. Furthermore, the positive association between social capital and informativeness is driven by more diverse networks, as measured by gender, nationality, education, or professional diversity. Overall, results suggest that private information existing in networks may result in markets that are more informationally efficient.
In Essay 2, I show that CEOs’ social capital has a positive impact on stock price informativeness in an international sample. Different robustness and endogeneity tests confirm those results. Moreover, I find that factors present at the country level can mitigate or reinforce social capital’s impact on informativeness. I consider characteristics not observable within one country that can influence such relation around the world including legal, cultural, and developmental. I uncover that for more developed countries and those with a higher quality of institutions a positive impact of social connectedness is more pronounced. In addition, I show the importance of CEOs’ connections characteristics for their impact on stock price informativeness. I find that if CEOs’ connections come from developed countries or countries that have better formal and informal institutions which affect information transparency, CEOs’ social capital becomes more important for informativeness.