%0 Journal Article %A Hans R. Stoll %A Robert E. Whaley %T Volatility and futures %B Message versus messenger %D 1988 %R 10.3905/jpm.1988.409144 %J The Journal of Portfolio Management %P 20-22 %V 14 %N 2 %U https://jpm.pm-research.com/content/iijpormgmt/14/2/20.full.pdf