We provide a general framework for the study of cascade effects created by interconnections between sectors, firms or financial institutions. Focusing on a multi sector economy linked through a supply network, we show how structural properties of the supply network determine both whether...

We introduce a dynamic noisy rational expectations model in which information diffuses through a general network of agents. In equilibrium, agents who are more closely connected have more similar period-by-period trades, and an agent's profitability is determined by a centrality measure that is...

We introduce a conditional volatility model that combines persistent volatility dynamics with spillovers from a wide cross-section of assets. We use elastic net estimation on a large, restricted VAR of realized measures to model these volatility dynamics. We show that despite the many parameters...