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Networks in Risk Spillovers: A Multivariate GARCH Perspective
(2018-08-01)
We propose a spatiotemporal approach for modeling risk spillovers using time-varying proximity matrices based on observable financial networks and introduce a new bilateral specification. We study covariance stationarity ...
Idiosyncratic Volatility Puzzle: The Role of Assets' Interconnections
(2018-08-08)
The paper investigates the determinants of the idiosyncratic volatility puzzle by allowing linkages across asset returns. The first contribution of the paper is to show that portfolios sorted by increasing indegree computed ...