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Title: Tobin's Imperfect Asset Substitution in Optimizing General Equilibrium

Author(s): Javier Andr�s, J David L�pez-Salido and Edward Nelson

Publication Date: March 2004

Keyword(s): imperfect asset substitution, monetary policy, term structure and transmission mechanism

Programme Area(s): International Macroeconomics

Abstract: In this Paper, we present a dynamic optimizing model that allows explicitly for imperfect substitutability between different financial assets. This is specified in a manner that captures Tobin?s (1969) view that an expansion of one asset?s supply affects both the yield on that asset and the spread or ?risk premium? between returns on that asset and alternative assets. Our estimates of this model on US data confirm that some of the observed deviations of long-term rates from the expectations theory of the term structure can be traced to movements in the relative stocks of financial assets. The richer aggregate demand and asset specifications imply that there exists an additional channel of monetary policy. Our results suggest that central bank operations exercise a modest influence on the relative prices of alternative financial securities, and so exert an extra effect on long-term yields and aggregate demand separate from their effect on the expected path of short-term rates.

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Bibliographic Reference

Andr�s, J, L�pez-Salido, J and Nelson, E. 2004. 'Tobin's Imperfect Asset Substitution in Optimizing General Equilibrium'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=4336