We identify networks of volatility spillovers and examine time-varying spillover intensities with daily implied volatilities of US Treasury bonds, global stock indexes, and commodities. The US stock market is the center of the international volatility spillover network and its volatility...

This paper implements an emerging data-driven method of directed acyclic graphs to study the contemporaneous causal structure among the federal funds rate and U.S. Treasury bond yields of various maturities. Using high frequency daily data from 1994 to 2009, we find that innovations in the...