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Article Dans Une Revue Econometrica Année : 2010

Large risks, limited liability, and dynamic moral hazard

Résumé

We study a continuous-time principal-agent model in which a risk-neutral agent with limited liability must exert unobservable effort to reduce the likelihood of large but relatively infrequent losses. Firm size can be decreased at no cost or increased subject to adjustment costs. In the optimal contract, investment takes place only if a long enough period of time elapses with no losses occurring. Then, if good performance continues, the agent is paid. As soon as a loss occurs, payments to the agent are suspended, and so is investment if further losses occur. Accumulated bad performance leads to downsizing. We derive explicit formulae for the dynamics of firm size and its asymptotic growth rate, and we provide conditions under which firm size eventually goes to zero or grows without bounds.

Dates et versions

halshs-00491470 , version 1 (11-06-2010)

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Bruno Biais, Thomas Mariotti, Jean-Charles Rochet, Stéphane Villeneuve. Large risks, limited liability, and dynamic moral hazard. Econometrica, 2010, 78 (1), pp.73-118. ⟨10.3982/ECTA7261⟩. ⟨halshs-00491470⟩
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