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Working Paper
Risk Sharing and Amplification in the Global Banking Network
We develop a structural model of the global banking network and analyze its role in facilitating risk sharing and amplifying shocks across countries and over time. Using bilateral international lending data, we uncover significant heterogeneity in the willingness and capacity of banks to provide cross‐border interbank and corporate loans. This heterogeneity explains variation in risk sharing and amplification across countries. Moreover, we show that cross‐border loan supply has become less elastic overtime, resulting in a decline in risk sharing. While shock amplification has also ...
Working Paper
Upstream, Downstream & Common Firm Shocks
We develop a multi-sector DSGE model to calculate upstream and downstream industry exposure networks from U.S. input-output tables and test the relative importance of shocks from each direction by comparing these with estimated networks of firms? equity return responses to one another. The correlations between the upstream exposure and equity return networks are large and statistically significant, while the downstream exposure networks have lower ? but still positive ? correlations that are not statistically significant. These results suggest a low short-term elasticity of substitution ...
Working Paper
Geopolitical Oil Price Risk and Economic Fluctuations
This paper seeks to understand the general equilibrium effects of time-varying geopolitical risk in oil markets. Answering this question requires simultaneously modeling several features including macroeconomic disasters and geopolitically driven oil production disasters, oil storage and precautionary savings, and the endogenous determination of uncertainty about output and the price of oil. We find that oil price uncertainty tends to be driven by macroeconomic uncertainty. Shifts in the probability of a geopolitically driven major oil supply disruption have meaningful effects on the price of ...