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A Dynamic Equilibrium Model of International Portfolio Holdings
Author(s) -
Serrat Angel
Publication year - 2001
Publication title -
econometrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 16.7
H-Index - 199
eISSN - 1468-0262
pISSN - 0012-9682
DOI - 10.1111/1468-0262.00254
Subject(s) - economics , portfolio , equity (law) , consumption (sociology) , replicating portfolio , econometrics , general equilibrium theory , partial equilibrium , dynamic stochastic general equilibrium , mathematical economics , microeconomics , financial economics , portfolio optimization , monetary economics , monetary policy , social science , sociology , political science , law
This paper develops a continuous‐time equilibrium model of a two‐country exchange economy with heterogeneous agents and nontraded goods. Nontraded goods play the role of state variables that shift the marginal utility of traded goods. This affects prices and generates dynamic hedging demands that explain the well documented home bias puzzle in international equity portfolios. When calibrated to both consumption and production data, the model is able to generate significative home bias in equity portfolios. A new methodology, based on Malliavin calculus, is presented to solve for the portfolio policies along the equilibrium path. This methodology allows one to reduce the determination of equilibrium portfolio holdings to the solution of a linear algebraic system, rather than a partial differential equation.