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Risk Sharing Through Financial Markets With Endogenous Enforcement Of Trades

Thorsten Koeppl

No 1048, Working Paper from Economics Department, Queen's University

Abstract: When people share risk in financial markets, intermediaries provide costly enforcement for most trades and, hence, are an integral part of financial markets' organization. We assess the degree of risk sharing that can be achieved through financial markets when enforcement is based on the threat ofexclusion from future trading as well as on costly enforcement intermediaries. Starting from constrained efficient allocations and taking into account the public good character of enforcement we study a Lindahl-equilibrium where people invest in asset portfolios and simultaneously choose to relax their borrowing limits by paying fees to an intermediary who finances the costs ofenforcement. We show that financial markets always allow for optimal risk sharing as long as markets are complete, default is prevented in equilibrium and intermediaries provide costly enforcement competitively. In equilibrium, costly enforcement translates into both agent-specific borrowing limits and price schedules that include a separate default premium. Enforcement costs - or, equivalently, default premia - increase borrowing costs, while interest rates per se depend on the change in enforcement over time.

Keywords: Limited Commitment; Enforcement Intermediaries; Lindahl-equilibrium; Endogenous Borrowing Constraints (search for similar items in EconPapers)
JEL-codes: C73 D60 G10 H41 K42 (search for similar items in EconPapers)
Pages: 41 pages
Date: 2004-12
New Economics Papers: this item is included in nep-bec, nep-cfn, nep-fin, nep-fmk, nep-law and nep-pbe
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https://www.econ.queensu.ca/sites/econ.queensu.ca/files/qed_wp_1048.pdf First version 2004 (application/pdf)

Related works:
Journal Article: Risk sharing through financial markets with endogenous enforcement of trades (2006) Downloads
Working Paper: Risk sharing through financial markets with endogenous enforcement of trades (2004) Downloads
Working Paper: Risk Sharing through Financial Markets with Endogenous Enforcement of Trades (2004) Downloads
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