We show that R&D investment explains a significant portion of the increase in the average cash-to-assets ratio of U.S. firms, which more than doubled between 1980 and 2012. In 1980, an average firm held $0.04 in cash for $1.00 of R&D spending, but this had increased to $0.60 by 2012. The increasing sensitivity of cash holdings to R&D investment and the increase in R&D spending of the typical firm explain over 20% of the increase in aggregate cash holdings. Intensified domestic and global competition appears to be an important explanation for the increased propensity of R&D-intensive firms to hoard cash.

We provide evidence that sophisticated investors like short sellers, option traders, and financial institutions are more informed when trading stocks of companies with more connected board members. For firms with large director networks, the annualized return difference between the highest and lowest quintile of informed trading ranges from 4% to 7.2% compared to the same return difference in firms with less connected directors. Sophisticated investors better predict outcomes of upcoming earnings surprises and firm-specific news sentiment for companies with more connected directors. Changes in board connectedness are positively associated with changes in measures of adverse selection.