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Optimization of Fire Sales and Borrowing in Systemic Risk

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arxiv 1802.04232 v3 pith:GZ4IPDPH submitted 2018-02-12 q-fin.MF q-fin.RM

classification q-fin.MFq-fin.RM
keywords borrowingclearingfiresalesaggregationallowingborrowcollateralized
verification ladder T0 review T1 audit T2 compute T3 formal
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This paper provides a framework for modeling financial contagion in a network subject to fire sales and price impacts, but allowing for firms to borrow to cover their shortfall as well. We consider both uncollateralized and collateralized loans. The main results of this work are providing sufficient conditions for existence and uniqueness of the clearing solutions (i.e., payments, liquidations, and borrowing); in such a setting any clearing solution is the Nash equilibrium of an aggregation game.

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