There is a large and growing literature on spillovers but no study that systematically evaluates the importance of spillovers for portfolio management. This paper provides such an analysis and demonstrates that spillovers are fully embedded in estimates of expected returns, variances, and...

Research and Development (R&D) investments can lead to robust stock returns in many instances. Investments in R&D create significant information asymmetry between the firm and the general public, which can lead to volatile trading activity as a result of the uncertainty stemming from the R&D...