Radner Equilibria under Ambiguous Volatility

Beißner P (2013) Center for Mathematical Economics Working Papers; 493.
Bielefeld: Center for Mathematical Economics.

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Diskussionspapier | Veröffentlicht | Englisch
Abstract / Bemerkung
The present paper considers a class of general equilibrium economies when the primitive uncertainty model features uncertainty about continuous-time volatility. This requires a set of mutually singular priors, which do not share the same null sets. For this setting we introduce an appropriate commodity space and the dual of linear and continuous price systems. All agents in the economy are heterogeneous in their preference for uncer- tainty. Each utility functional is of variational type. The existence of equi- librium is approached by a generalized excess utility fixed point argument. Such Arrow-Debreu allocations can be implemented into a Radner economy with continuous-time trading. Effective completeness of the market spaces al- ters to an endogenous property. Only mean unambiguous claims equivalently satisfying the classical martingale representation property build the marketed space.
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493
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48
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Beißner P. Radner Equilibria under Ambiguous Volatility. Center for Mathematical Economics Working Papers. Vol 493. Bielefeld: Center for Mathematical Economics; 2013.
Beißner, P. (2013). Radner Equilibria under Ambiguous Volatility (Center for Mathematical Economics Working Papers, 493). Bielefeld: Center for Mathematical Economics.
Beißner, P. (2013). Radner Equilibria under Ambiguous Volatility. Center for Mathematical Economics Working Papers, 493, Bielefeld: Center for Mathematical Economics.
Beißner, P., 2013. Radner Equilibria under Ambiguous Volatility, Center for Mathematical Economics Working Papers, no.493, Bielefeld: Center for Mathematical Economics.
P. Beißner, Radner Equilibria under Ambiguous Volatility, Center for Mathematical Economics Working Papers, vol. 493, Bielefeld: Center for Mathematical Economics, 2013.
Beißner, P.: Radner Equilibria under Ambiguous Volatility. Center for Mathematical Economics Working Papers, 493. Center for Mathematical Economics, Bielefeld (2013).
Beißner, Patrick. Radner Equilibria under Ambiguous Volatility. Bielefeld: Center for Mathematical Economics, 2013. Center for Mathematical Economics Working Papers. 493.
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