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The Valuation Channel of External Adjustment

Fabio Ghironi (), Jaewoo Lee () and Alessandro Rebucci ()

No 722, Boston College Working Papers in Economics from Boston College Department of Economics

Abstract: International financial integration has greatly increased the scope for changes in a country's net foreign asset position through the "valuation channel" of external adjustment, namely capital gains and losses on the country's external assets and liabilities. We examine this valuation channel theoretically in a dynamic equilibrium portfolio model with international trade in equity that encompasses complete and incomplete asset market scenarios. By separating asset prices and quantities in the definition of net foreign assets, we can characterize the first-order dynamics of both valuation effects and net foreign equity holdings. First-order excess returns are unanticipated and i.i.d. in our model, but capital gains and losses on equity positions feature persistent, anticipated dynamics in response to productivity shocks. The separation of prices and quantities in net foreign assets also enables us to characterize fully the role of capital gains and losses versus the current account in the dynamics of macroeconomic aggregates. Specifically, we disentangle the roles of excess returns, capital gains, and portfolio adjustment for consumption risk sharing when financial markets are incomplete, showing how these different channels contribute to dampening (or amplifying) the impact response of the cross-country consumption differential to shocks and to keeping it constant in subsequent periods.

Keywords: Current account; Equity; Net foreign assets; Risk sharing; Valuation (search for similar items in EconPapers)
JEL-codes: F32 F41 G11 G15 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cba, nep-dge and nep-opm
Date: 2009-10-28
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Related works:
Journal Article: The valuation channel of external adjustment (2015) Downloads
Working Paper: The Valuation Channel of External Adjustment (2015) Downloads
Working Paper: The valuation channel of external adjustment (2009) Downloads
Working Paper: The Valuation Channel of External Adjustment (2009) Downloads
Working Paper: The Valuation Channel of External Adjustment (2007) Downloads
Working Paper: The Valuation Channel of External Adjustment (2006) Downloads
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