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Journal Article
The Changing Input-Output Network Structure of the U.S. Economy
U.S. industries have become less connected over the last 10 years, and service industries have become more central.
Working Paper
The Origins of Aggregate Fluctuations in a Credit Network Economy
I show that inter-firm lending plays an important role in business cycle fluctuations. I first build a tractable network model of the economy in which trade in intermediate goods is financed by supplier credit. In the model, a financial shock to one firm affects its ability to make payments to its suppliers. The credit linkages between firms propagate financial shocks, amplifying their aggregate effects by about 30 percent. To calibrate the model, I construct a proxy of inter-industry credit flows from firm- and industry-level data. I then estimate aggregate and idiosyncratic shocks to ...