Government Purchases and the Real Exchange Rate

27 Pages Posted: 8 Sep 2009

See all articles by Robert Kollmann

Robert Kollmann

ECARES, Université Libre de Bruxelles; University of Paris XII - Department of Economics; Centre for Economic Policy Research (CEPR)

Date Written: August 2009

Abstract

Recent empirical research documents that an exogenous rise in government purchases in a given country triggers a persistent depreciation of its real exchange rate - which raises an important puzzle, as standard macro models predict an appreciation of the real exchange rate. This paper presents a simple model with limited international risk sharing that can account for the empirical real exchange rate response. When faced with a country-specific rise in government purchases, local households experience a negative wealth effect; they thus work harder, and domestic output increases. Under balanced trade (financial autarky) this supply-side effect is so strong that the terms of trade worsen, and the real exchange rate depreciates. In a bonds-only economy, an increase in government purchases triggers a real exchange rate depreciation, if the rise in government purchases is sufficiently persistent and/or labor supply is highly elastic.

Keywords: government purchases, limited international risk sharing, real exchange rate

JEL Classification: E62, F36, F41

Suggested Citation

Kollmann, Robert, Government Purchases and the Real Exchange Rate (August 2009). CEPR Discussion Paper No. DP7427, Available at SSRN: https://ssrn.com/abstract=1469925

Robert Kollmann (Contact Author)

ECARES, Université Libre de Bruxelles ( email )

Ave. Franklin D Roosevelt, 50 - C.P. 114
Brussels, B-1050
Belgium

University of Paris XII - Department of Economics ( email )

61 avenue du General de Gaulle
Creteil cedex, 94010
France

HOME PAGE: http://www.robertkollmann.com

Centre for Economic Policy Research (CEPR)

London
United Kingdom

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