We explore the network topology of the interbank payments transferred between commercial banks over the Fedwire Funds Service. We find that the network is compact despite low connectivity. The network includes a tightly connected core of money-center banks to which all other banks connect. The degree distribution is scale-free over a substantial range. We find that the properties of the network changed considerably in the immediate aftermath of the attacks of September 11, 2001.
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Paper provided by Federal Reserve Bank of New York in its series Staff Reports with number
243.
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