Ambiguity Aversion and the Absence of Indexed Debt
Inspite of wide and long-standing support among economists for indexation of loan contracts there has been relatively little use of indexation, except in situations of extremely high inflation. The object of this paper is to provide a (theoretical) explanation for this puzzling phenomenon based on the hypothesis that economic agents are ambiguity averse. The present paper considers a competitive general equilibrium model of goods, money and bond markets populated by agents with Choquet expected utility preferences, where both nominal and indexed bonds are available for trade and prices of all goods and bonds are determined endogenously. We obtain conditions which promote an endogenous cessation of trade in indexed bonds: i.e., conditions under which there is no trade in indexed bonds in any equilibrium; only nominal bonds are traded.
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|Date of creation:||2000|
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