Equilibrium Selection in a Cashless Economy with Transaction Frictions in the Bond Market
AbstractThe present paper introduces two bonds in a standard New-Keynesian model to study the role of segmentation in bond markets for the determinacy of rational expectations equilibria. We use a strongly-separable utility function to model ‘liquid’ bonds that provide transaction services for the purchase of consumption goods. ‘Illiquid’ bonds, instead, provide the standard services of store of value. We interpret liquid bonds as mimicking short-term instruments, and illiquid bonds to represent long-dated instruments. In this simple setting, the expectation hypothesis holds after log-linearizing the model and after pricing the bonds according to an affine scheme. We assume that monetary policy follows a standard Taylor rule. In this context, the inflation targeting parameter should be higher than one for determinacy of rational expectations equilibria to be achieved. We compute an analytical solution for the bond pricing kernel. We also show that the possibility of obtaining this analytical solution depends on the type of utility function. When utility is weakly separable between consumption and liquid bonds, the Taylor principle holds conditional to the output and inflation coefficients in the Taylor rule. Achieving solution determinacy requires constraining these coefficients within bounds that depend on the structural parameters of the model, like the intertemporal elasticity of consumption substitution.
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Bibliographic InfoPaper provided by The Rimini Centre for Economic Analysis in its series Working Paper Series with number 28_11.
Date of creation: Jul 2011
Date of revision:
term structure; determinacy; pricing kernel; fiscal and monetary policy;
Other versions of this item:
- M. Marzo & P. Zagaglia, 2011. "Equilibrium Selection in a Cashless Economy with Transaction Frictions in the Bond Market," Working Papers wp769, Dipartimento Scienze Economiche, Universita' di Bologna.
- Marzo, Massimiliano & Zagaglia, Paolo, 2011. "Equilibrium selection in a cashless economy with transaction frictions in the bond market," MPRA Paper 31680, University Library of Munich, Germany.
- E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
- E63 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Comparative or Joint Analysis of Fiscal and Monetary Policy; Stabilization; Treasury Policy
This paper has been announced in the following NEP Reports:
- NEP-ALL-2011-07-21 (All new papers)
- NEP-CBA-2011-07-21 (Central Banking)
- NEP-MAC-2011-07-21 (Macroeconomics)
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