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Endogenous collateral

  • Araujo, Aloisio
  • Fajardo, Jose
  • Pascoa, Mario R.

We study an economy where there are two types of assets. Consumers' promises are the primitive defaultable assets secured by collateral chosen by the consumers themselves. The purchase of these personalized assets by ¯- nancial intermediaries is ¯nanced by selling back derivatives to consumers. We show that nonarbitrage prices of primitive assets are strict submartin- gales, whereas nonarbitrage prices of derivatives are supermartingales. Next we establish existence of equilibrium, without imposing bounds on short sales. The nonconvexity of the budget set is overcome by considering a continuum of agents

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Article provided by Elsevier in its journal Journal of Mathematical Economics.

Volume (Year): 41 (2005)
Issue (Month): 4-5 (August)
Pages: 439-462

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Handle: RePEc:eee:mateco:v:41:y:2005:i:4-5:p:439-462
Contact details of provider: Web page: http://www.elsevier.com/locate/jmateco

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  1. Fajardo, J., 2004. "A Note On Arbitrage and Exogenus Collateral," Finance Lab Working Papers flwp_62, Finance Lab, Insper Instituto de Ensino e Pesquisa.
  2. Páscoa, Mario Rui & Araújo, Aloísio Pessoa de & Torres-Martínez, Juan Pablo, 2001. "Collateral Avoids Ponzi Schemes in Incomplete Markets," Economics Working Papers (Ensaios Economicos da EPGE) 419, FGV/EPGE Escola Brasileira de Economia e Finanças, Getulio Vargas Foundation (Brazil).
  3. Araujo, Aloisio & Fajardo, Jose & Pascoa, Mario R., 2005. "Endogenous collateral," Journal of Mathematical Economics, Elsevier, vol. 41(4-5), pages 439-462, August.
  4. Magill, Michael & Shafer, Wayne, 1991. "Incomplete markets," Handbook of Mathematical Economics, in: W. Hildenbrand & H. Sonnenschein (ed.), Handbook of Mathematical Economics, edition 1, volume 4, chapter 30, pages 1523-1614 Elsevier.
  5. John Geanakoplos & Pradeep Dubey, 1989. "Liquidity and Bankruptcy with Incomplete Markets: Pure Exchange," Cowles Foundation Discussion Papers 900, Cowles Foundation for Research in Economics, Yale University.
  6. Mariano Steinert & Juan Pablo Torres-Martínez, 2004. "General equilibrium existence with asset-backed securitization," Textos para discussão 490, Department of Economics PUC-Rio (Brazil).
  7. Duffie, Darrell & Shafer, Wayne, 1985. "Equilibrium in incomplete markets: I : A basic model of generic existence," Journal of Mathematical Economics, Elsevier, vol. 14(3), pages 285-300, June.
  8. Aloisio Ara�jo & Jaime Orrillo & Mario R. Páscoa, 2000. "Equilibrium with Default and Endogenous Collateral," Mathematical Finance, Wiley Blackwell, vol. 10(1), pages 1-21.
  9. Donald A. Walker (ed.), 2000. "Equilibrium," Books, Edward Elgar, volume 0, number 1585, 6.
  10. Elyégs Jouini & Hédi Kallal, 1995. "Arbitrage In Securities Markets With Short-Sales Constraints," Mathematical Finance, Wiley Blackwell, vol. 5(3), pages 197-232.
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