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Price Impact and Portfolio Impact

  • Jaksa CVITANIC

    (Caltech)

  • Semyon MALAMUD

    (EPF Lausanne and Swiss Finance Institute)

We study survival, price impact and portfolio impact in heterogeneous economies. We show that, under the equilibrium risk-neutral measure, long-run price impact is in fact equivalent to survival, whereas longrun portfolio impact is equivalent to survival under an agent-specific, wealth-forward measure. These results allow us to show that price impact and portfolio impact are two independent concepts: a nonsurviving agent with no long-run price impact can have a significant long-run impact on other agents' optimal portfolios.

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Paper provided by Swiss Finance Institute in its series Swiss Finance Institute Research Paper Series with number 10-26.

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Length: 80 pages
Date of creation: Jun 2010
Date of revision:
Handle: RePEc:chf:rpseri:rp1026
Contact details of provider: Web page: http://www.SwissFinanceInstitute.ch

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