This study extends the Diebold-Yilmaz Connectedness Index (DYCI) methodology and, based on forecast error covariance decompositions, derives a network risk model for a portfolio of assets. As a normalized measure of the sum of variance contributions, system-wide connectedness averages out the...

This study extends the Diebold-Yilmaz Connectedness Index (DYCI) methodology and, based on forecast error covariance decompositions, derives a network risk model for a portfolio of assets. As a normalized measure of the sum of variance contributions, system-wide connectedness averages out the...

This paper documents and explains the positive comovement between external and budget deficits for several developing countries. First, the covariance estimated from post-1960 time-series data is numerically positive for each of the 24 countries and statistically significant for almost all...

This paper documents and explains the positive comovement between the external and budget deficits of developing countries for which post-1960 time-series data are available. First, the estimates indicate that the empirical covariance between these deficits is always positive and is...